Step right up for the most amazing DIY baby costumes, all of which center around something you have dozens of lying around your home: a onesie! From an ’80s aerobic instructor to a perfectly sprinkled doughnut, these simple do-it-yourself costumes will have your baby and their bodysuit looking boo-worthy in no time.

Sushi

This Martha Stewart-approved sushi costume is everything you could imagine and more. Visit Martha Stewart for the instructionsand templates for tuna and shrimp designs.

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'80s Aerobics Instructor

Jane Fonda has nothing on your little aerobics instructor. This DIY costume is a winner in three major categories: It's easy to make, adorable and super cozy. Grab some leg warmers, a onesie and a plain headband and you're good to go. If you don't have the time or sewing skills to make a felt boombox, get a cardboard box and a Sharpie and draw one.

Pac-Man

Calling all gamers! Start with a plain, white onesie and cut out felt pieces of Pac-Man, dots and a ghost. Or, head to Etsy and pick up a readymade version from the 1 Little Hapa Lamb shop.

photo: She Knows

Crayon

Transform any onesie into a cute crayon costume with a crayon template you print out on iron-on paper! She Knows has supplied the easy-peasy crayon costume instructions and the clever crayon template. This is a great costume idea for twins or bigger groups.

Football

If you can sew or use a hot glue gun, you can make this cute football costume. It's perfect for sports fans or if you have an older sibling dressing up as a football player. Head to Lines Across for the instructions. 

photo: Lissables Photography

Mummy

Turn your little babe into a mummy in 30 minutes or less by following Alissa Christensen's easy tutorial. The best part about this costume is your baby won't even know they're in it, which might mean they'll sleep right through all that noisy trick-or-treating!

photo: Oh Happy Day

Strong Man

This photo shows a t-shirt, but you could easily swap in a red onesie. What makes this costume are the tattoos and barbell, which is cleverly constructed from balloons and a cardboard roll so it's light enough for baby. Oh Happy Day has the instructions you need to make your own.

photo: Make It & Love It

Where's Waldo

In a chilly climate, you'll appreciate the hat on this costume. All you'll need is a white onesie you'll cover with red felt strips and red and white fleece for the hat. Add jeans and round glasses (search for Harry Potter glasses), and you're all set. Make It & Love It has the tutorial.

photo: And We Play

Skeleton

A skeleton is an easy costume for kids at any age, and it's ideal for a squirmy or sleepy baby. And We Play shared this costume that you can throw together last-minute with a black onesie and leggings and some white duct tape. Keep it simple with white strips or go fancy to cut the tape into bone shapes.

Donut

This doughnut costume is a little more involved than the others, but it's worth the effort. And it doesn't require sewing. Pop over to Smart School House for the tutorial.

Aimee Della Bitta

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