DIY Heart Onesie in 10 Minutes or Less

Valentine’s Day is quickly approaching! Valentine’s Day is one of those holidays that sneaks up on me. But in an effort to become more intentional this year, I think I have a pretty good head start. I’ve already made the little one’s preschool Valentines, and today I’m sharing a heart onesie for a boy! My sister had a new baby boy, and I wanted a way that she could take a cute Valentine’s Day picture with him, but in a boyish way. A boy can wear hearts as long as they are blue, right? This is also my first attempt at Heat Transfer Vinyl, and I am hooked! This is such a quick and easy project. Even with three babies rolling around, I was able to complete this during a nap time with time to spare. So here’s a DIY Heart Onesie that can be completed in 10 minutes or less!

DIY Heart Onesie in 10 minutes or less. Uses Heat Transfer Vinyl.


  • Onesie
  • Heat Transfer Vinyl
  • Iron
  • Towel

Begin by measuring the front of the onesie to determine how big that the heart should be. For a 0-3 month onesie, I decided to cut mine 4″ by 4″.

Measure heart onesie

Now cut the heart in the measurement. I have a Cricut, so I was able to cut a heart using the Plantin Schoolbook cartridge. If you do not have a Cricut, use a stencil. If using a Cricut, be sure to cut the vinyl with the shiny side down.

Heat the iron to the Cotton setting. Place the heart on the onesie, shiny side up.

DIY Heart Onesie from It Happens in a Blink

Keeping the heart in place on the onesie, lay a towel over it. Take the hot iron and press it down over the towel for 60 seconds. Lift up the iron and towel and check to see how secure the heart is to the onesie. Continue this method in 30 second increments until the vinyl is totally secure.

Ironing Heat Transfer Vinyl

Now peel the shiny plastic off of the heart.

Peel vinyl from onesie

Voila! Done, easy, but yet you look like a crafting Valentine genius. That’s my kind of project.


In a Blink Timeframe: 10 minutes or less

How the Kids can Help: This is an adult only project. Sorry, kiddos!

Want more heart projects? I’m partnering with some of #myfavoritebloggers today to bring 13 Heart Shaped Projects!

#Myfavoritebloggers January Edition

From left to right, top to bottom, here are this month’s #MyFavoriteBloggers: Marilyn from 4 You with Love, Sky from Creative Capital B, Adrianne from Happy Hour Projects, Bethany from Pitter and Glink, Lauren from Thinking Closet, Tara from Suburble, Nancy from Do Small Things with Love, Emily from The Benson Street, Kara from Happy Go Lucky, Sarah from Repeat Crafter Me,  ChiWei from 1 Dog Woof,  Melanie from It Happens in a Blink, and Kara from Petals to Picots.

13 Heart Shaped Projects for Valentine's Day

Once again, from left to right, top to bottom: Printable Minion Valentine from The Benson Street, Easy Crochet Heart Pattern from Repeat Crafter Me, Free True Love Valentine’s Printable from Pitter and Glink, Glitter Heart Burlap Banner from Happy Go Lucky, Needle Felted Heart Key-chain from Petals to Picots, Simple Heart Chocolate Valentine’s from 1 Dog Woof, Handmade Valentines from Suburble, Solid Lotion Bars from 4 You with Love, Berrylicious Heart-Shaped Ice Cubes from The Thinking Closet, Felt Valentine Treat Pouches from Do Small Things with Love, Etched Champagne Flutes from Happy Hour Projects, Heart Owl Valentines with Your Kid’s Art from Creative B, and Heat Transfer Vinyl Heart Onesie from It Happens in a Blink.



Leave a Reply

Your email address will not be published. Required fields are marked *