Six Unique Ideas for Your Next DIY Baby Onesie

Six Unique Ideas for Your Next DIY Baby Onesie

Whether you are expecting a bundle of joy or you’re looking for a unique gift for an expecting parent, DIY baby clothes are a fun way to celebrate a little one. Baby onesies are especially easy to personalize and turn into your own unique work of art.

One of the best canvases you can choose to create your DIY baby onesie is the organic onesie. These onesies are made of 100% certified organic cotton and will provide your baby with the softness and flexibility they need. They also come in five different colors for ultimate DIY-ability.

It’s easy to create a custom onesie, especially when your order from Cotton Creations. There’s no minimum requirement to order, so you can purchase as many, or as few, onesies as you need and start designing away!

DIY Baby Onesie Ideas

The great thing about using a cute baby onesie as your blank canvas is that the possibilities for design are endless. It’s easy to create something unique for a boy or a girl — or even something that’s gender neutral if you or the parents-to-be don’t know what the baby will be.

Here are six ideas to get you started:

1. Lovely in Lace

Who doesn’t love lace? It’s very simple to add a little elegant, lacy flair to craft the perfect DIY baby onesie for a little girl.


  • Onesie
  • Approximately seven yards of lace
  • Ribbon to use for facing
  • Two buttons
  • Glue gun
  • Needle plus thread the same color as the lace
  • Scissors


  1. Lay out the plain onesie.
  1. Cut off the top of the onesie so you are cutting off half of the sleeves and the neckline.
  2. Now you can cut off the sleeves entirely making this a sleeveless onesie — and you’ll be adding straps with the lace.
  3. You need to put the onesie on something that has about the same circumference as the baby. This is a very important step especially since you will now be gluing the lace onto the onesie, and lace will not stretch.
  4. Circle the lace all the way around the onesie, starting at the bottom. You will keep gluing circles all the way up the onesie. You will only need to leave about ½ inch space between each layer of the lace as each piece of lace will overlap the one below and cover any gap between the lace.
  5. Once you get to the armpit area of the onesie and can’t make complete circles any longer, just glue pieces of lace as far around as you can.
  6. As you will have unfinished edges around the collar and sleeves, you can use the ribbon to cover over those edges. Attach the ribbon with the hot glue.
  7. Once you have completed covering the unfinished edges with the ribbon, sew two buttons on the top of the lace at the back of each shoulder — you can use these to connect the straps and make it easier to get the onesie on and off.
  8. You will want to sew the two ends of a piece of lace onto the front of the onesie where the sleeves were so you can make the straps. Be sure to add an extra loop of lace or a small hole for a button to be able to connect the straps to the buttons on the back of the onesie.


2. Baby Birthday Celebration

One of the best ways to celebrate the milestones during a baby’s first year is to craft DIY baby shower gifts that represent those important events. There is a variety of fun transfers you can iron on to onesies to share those milestones. Etsy is a great source for designs that can be easily applied using transfer paper. If you’re artistic, you can create your own designs as well.


  • Onesie
  • Scraps of fabric
  • Iron
  • Heat-n-Bond material
  • Pen
  • Scissors


    1. Cut out the pieces of Heat-n-Bond material so they are the same size as the scraps of fabric. Iron the heat bond with the rough side of the heat bond against the wrong side of the fabric.
    2. Draw a square on one of the pieces of the material using a pen.
    3. Cut out the square.

Draw a number on another piece of fabric. Make sure the number is the right size so it will fit on top of the square.

  1. Cut out the number and place it on the square.
  2. Peel away the Heat-n-Bond from number and iron it on the square. Then, peel the Heat-n-Bond from the square, and iron both pieces to the onesie.
  3. You can make as many of these pieces as you want by using different numbers for different onesies to represent all of the months of a baby’s first year of life.
  4. If you want to ensure the appliques will last through many washings, you can sew them securely by using thread that matches the applique and using a straight stitch.


3. Very Vinyl Designs


By using heat vinyl transfer sheets, you can create unique onesies and make perfect DIY baby gifts. Vinyl sheets can be purchases at minimal cost from various sites.



  1. Download the rhino cut file, linked above. This will be the pattern you’ll use your silhouette machine to cut out.
  2. Using the silhouette machine, cut out your rhino design on heat-transfer vinyl. Make sure the vinyl side of the heat transfer vinyl is facing down on the cutting mat when cutting out the design with the Silhouette machine.
  3. Place the rhinos on the onesie and create any pattern you want. Alternating between right-side-up and upside-down will create a unique design. The rhinos should be placed on the onesie so that the side with the plastic covering is facing up.
  4. Make sure your iron is on a cloth setting. After you put a cloth over the onesie, covering all of the rhinos, press the iron down for 60 seconds on the cloth. Do this over all parts of the onesie until heat has been applied to all of the rhinos.
  5. Remove the clear plastic covering that was on the rhinos to reveal your finished product.


4. Appealing Appliques


To create a one-of-a-kind look on a onesie, you might consider applying a variety of appliques, which you can create yourself. This is the perfect way to add that special personalized touch to the onesie for your baby or as a gift.


Not artistic? No problem. You can download an image to create your applique. For this project, we’ll use a duck (see below).


  • Onesie
  • Silhouette machine
  • Fabric interfacing — this is a lining that can used to add stiffness to fabric and can be sewn in or ironed on.
  • Sewing machine
  • Scissors
  • Scraps of fabric


  1. Create a design for your silhouette machine by downloading an image such as this very simple duck image for free. You will need to download Silhouette Studio on your MAC or PC to open the duck image file.
  2. Iron the interfacing onto the fabric by placing the rough side of the interfacing on the back of the fabric. Don’t leave the iron on the fabric for too long, and make sure to check it after intervals of five seconds to see if it has bonded to the fabric.
  3. Take the liner off of the interfacing by peeling it off.
  4. Install the fabric blade in the silhouette machine.
  5. Put the ironed fabric with interfacing on the mat of the silhouette machine so you are cutting the fabric with the interfacing side down.
  6. After you have cut out your duck design, iron the design with the interfacing side down onto the onesie. Remove the iron after five second intervals to see if the design is now set on the fabric.
  7. Now that you have ironed the appliqued duck design on the onesie, sew it on the onesie to reinforce it. Use a zig-zag stitch to achieve the best results and carefully follow around the curves of the applique.
  8. As a final touch, iron the appliqued design once more to soften any of the rough edges.

5. Totally Tie-Dye


Tie-dye is always a tried-and-true method of making any fabric unique since no two fabrics will turn out the same. You can make a tie-dyed onesie as a baby shower gift or host a baby shower where the participants can enjoy tie-dying to make a number of unique onesies for the parent(s)-to-be.


  • Onesie(s)
  • Rit dye — you can usually purchase this dye in a craft store, and it is commonly used to tie-dye fabrics
  • Hot water
  • Large (three-gallon containers) for the various dye colors
  • Rubber bands
  • Large metal spoon
  • White vinegar or salt
  • Scissors
  • Rubber gloves
  • Disposable table cover
  • Paper towels
  • Bleach cleanser


  1. Cover the table with the disposable table cover.
  2. Prewash the onesies.
  3. Pick your dye colors — you will likely want to start with the lightest color.
  4. When placing colors next to one another on the fabric, you will want to make sure that if the colors run together, they mix to form a desirable color.
  5. You can create a variety of patterns and designs with your tie-dye. To create a marble design, gather the fabric into a ball and secure it with rubber bands. If you want to make stripes, fold the fabric either horizontally or vertically, much like a fan. Then wrap the fabric with rubber bands the same distance apart as the stripes you want to create.
  6. Make the dye according to the package directions after you have donned rubber gloves. Note that the hotter the water, the more vibrant the colors will be.
  7. If you want to make the colors even more intense, add up to a cup of salt to the dye bath for the fabric if it is all cotton. If the fabric of the onesie is silk, nylon or wool, add one cup of vinegar. When adding vinegar or salt, make sure each is dissolved.
  8. Place the onesie in the container with the lightest dye color and leave it there between four and 30 minutes while stirring occasionally. Take the onesie out of the container when the color is slightly darker than the color you want to achieve as the color will appear darker on wet fabric.
  9. You can either continue to dip the onesie in another container without unwrapping it or you can cut the rubber bands, unwrap it, rinse in cool water, and wrap again as you continue to use all of the colors.
  10. When you are finished using all of the colors, cut the rubber bands and rinse the fabric in cool water.
  11. Wash the onesie(s) in warm water with mild laundry detergent.
  12. Clean surfaces and spoons with your bleach cleanser.


6. Shine On


Using rhinestone transfers is a great way to spice up a onesie and give it the dazzle that is perfect for a baby girl. You can find different shapes such as Minnie Mouse or princess crowns and use the rhinestones to add simple elegance to your DIY baby gifts.


  • Onesie
  • Rhinestone transfer
  • Iron


  1. Put a cloth on top of the design with the rhinestones backings facing down on the onesie.
  2. Use the iron on the wool setting and iron for approximately 45-60 seconds. You will know the rhinestones are completely set if when you peel away the transfer tape, all the rhinestones are all on the fabric.
  3. Turn the onesie inside out, and repeat the same process of ironing from this side. You’ll also want to wash the onesie inside out so your design will stay on better.
  4. You’re all done! Turn your onesie right side out again to see your completed design sparkle.


What’s Next?

 If you are now inspired to buy or create unique baby clothes, you might be wondering where to start. We can help. At Cotton Creations, you can find onesies as well as baby blankets, bibs and even toddler apparel. If you’re looking to customize your apparel, we have design software that will enable you to create a number of easy, beautiful designs for your products.

You can have a baby’s name embroidered onto a blanket or even add a unique image to a bib or organic tee. You’ll also find baby’s layette apparel as well as other items such as infant tutu onesies, long-sleeve cotton onesies and organic cotton onesies.

If you have decided you want to customize a onesie or other fabric yourself, you don’t need to sacrifice quality if you want to purchase those products in bulk. All of our baby products are soft and made from the highest quality material — since we know they will get multiple washings.

Additionally, our onesies come in a variety of colors designed to resist fading, and they run true-to-size so you can avoid the guessing game of what size to purchase for a quickly growing baby.

Whether you need ideas for hosting a baby shower, some funny baby onesie ideas or must-have nursery items, you can find it right here at Cotton Creations.


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