Mermaid Shell Sweatshirt DIY

I’m definitely a big fan of the sweatshirt in winter. For whatever reason, it’s hard for me to find sweaters that I like (although this pom pom one is right up my alley!), so I tend to stock up on the ol’ sweatshirts for warmth. My favorite ones, however, usually have some sort of fun graphic or design on them to make them feel a little more special, and making mermaid costumes for Lola and me this Halloween made me think that I should probably have a mermaid sweatshirt too! Don’t worry if you are a beginner DIYer, as this one is really easy!

plain sweatshirt
gold iron on vinyl
mermaid shell template
-scissors and tape

Print your mermaid shell template and cut out your shell with scissors. Roll out a section of your iron on glitter vinyl and use the shell to trace two shell shapes onto the back of your vinyl. Feel free to print your shell larger or small, depending on how much “shell coverage” you want on your sweatshirt.Once your vinyl shells are cut out, try on your sweatshirt and make a mark with tape where you want each shell to be placed. Take the sweatshirt off and evenly space your shells onto your sweatshirt (you can use a ruler to make sure they are even heights, etc.). Use small pieces of tape to keep your shells in place while you move it to your ironing area. Heat your iron to the setting in the vinyl instructions and carefully remove the pieces of tape from one shell while you keep it in place with the other hand. Iron your vinyl decal in place. Repeat process with other shell.Allow the shells to cool and then peel off the plastic liner on top of each shell. Now your mermaid sweatshirt is ready to wear! Looove it!! Totally the type of thing I would wear with a holographic bag and gold heeled boots. Just because it’s getting to that dreary winter season (at least in this part of the country), that doesn’t mean that you have to dress dreary too! You can stay warm while having a bit of fun too, right? ???? xo. Laura

Credits // Author and Photography: Laura Gummerman. Photos edited with A Color Story Desktop.
  • Absolutely love this! This would be a great Christmas present for a few people I know!


  • This sweatshirt is cute on you but I would never be able to wear it. It would look like hands on my boobs!

    • If you don’t like the sea shells you could totally do a different shape. I’m thinking of doing lightning bolts. 🙂

  • Would the vinyl go through the wash okay? Or are there special washing instructions?

    • You’ll want to use vinyl that is specifically for ironing onto clothes and then follow the vinyl instructions for washing 🙂


  • Hi!

    Sorry this is random, but I can’t comment on the giveaway blog posts. How do we know who wins the giveaways? It says in the rules that the winners have to check back on the posts to see if they won, but none of the winners are posted. Am I missing something?

    Thanks for your help!

  • This sweatshirt is so cute and fun, and I love how easy it is to make. Thanks for sharing this DIY, Laura!


  • Great idea! I was thinking of doing that on some of my old jeans, they need a bit of sparkle!

    x Mariya

  • The colour combination is so nice! Love it! 🙂

    Charmaine Ng | Architecture & Lifestyle Blog

  • Absolutely adorable, I love it! It’s sparkly, girly, and eye-catching, but still a little slouchy & comfy – best of both worlds! What a great idea.

  • The gold and pink look so perfect together! The options are endless with this one, I’m thinking snowflakes for December? So cute!

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