25 Unique Halloween Costumes Made From a Simple T-Shirt

This adorable pizza slice and delivery boy costume from Studio DIY strikes the perfect balance between all-out crafting and low-maintenance costuming. While the pizza slice takes a bit more DIY effort, the delivery boy look comes together with a T-shirt, headphones, a hat and, of course, a pizza box.

Satisfy your sweet tooth before trick-or-treating even begins with this playful ice cream sundae costume. Glittered cardstock “sprinkles” transform an ordinary white T-shirt into a colorful frozen treat, while a few coordinating accessories can complete the look. Pro Tip: Short on crafting time? Colorful adhesive bandages make a quick and easy substitute for cardstock sprinkles.

If you have an athletic jersey lying around, you already have the makings of a clever last-minute costume. Pair it with a faux ivy scar or a few strands of artificial ivy, and just like that, you’re the “Ivy League.”

White T-shirt? Check. Rubber gloves? Check. Glasses? Check. This easy mad scientist costume comes together with a few everyday items you probably already have lying around the house. Add wild hair, a lab coat, or a few science-inspired props to take the look even further.

Stop! Before you toss out those old white T-shirts, turn them into a scary DIY mummy costume instead. Shred the fabric into strips, stain them with a little coffee for an aged look, then wrap and tie them over a black outfit. The result is an easy, budget-friendly costume that looks perfectly creepy for Halloween.

Holy guacamole! This punny costume starts with a simple green T-shirt transformed into everyone’s favorite dip. Add a few avocado-inspired details, then take the joke one step further with angel wings and a halo to become “Holy Guacamole.”

If you have solid-color T-shirts, colorful cardstock, and a little black felt, you have everything you need to create these adorable kids’ crayon costumes. Match the cardstock details to each shirt, add the signature black crayon label, and top off the look with a coordinating paper hat for an easy group costume that’s perfect for siblings or friends.

If you love a good pun, this clever “ceiling fan” costume is an easy win. Start with a T-shirt stenciled with a spirited “Go Ceiling” message, then add a pair of pompoms to complete the diehard-fan look.

When we say this costume is a waste of time, we mean it quite literally. Start with a simple black T-shirt, then attach a “waist” of handmade cardboard clocks around the middle to bring the pun to life. It’s a clever, low-cost costume that proves you don’t need to spend hours crafting to make a memorable Halloween look.

Whether you’re searching for a low-lift Halloween costume or just looking for an excuse to bring your guitar to the party, this punny moosician costume has you covered. Stick black paper spots onto a white T-shirt, grab your guitar, and you’re basically there. Add cow ears and a bow tie to really sell the look.

No guitar? No problem! The moosician costume can easily pull double duty as a “Holy Cow” costume with the simple addition of a halo. Keep the spotted white T-shirt and cow ears, swap the instrument for some angelic flair, and you’ve got a second Halloween look with almost no extra effort.

A party hat, party blower, a few white feathers, and a DIY "PARTY FOWL" sign are all you need to bring this Halloween pun to life. Start with a plain white T-shirt, decorate the party hat with feathers, hang the sign around your neck, and finish things off with the party blower for a costume that’s guaranteed to ruffle a few feathers.

We love this silly shooting star costume because, not only is it a quick and easy DIY, but it also gives you a built-in party gag. Pair a star-covered T-shirt with a few toy water squirters, and you’ve got a playful costume that’s sure to make a splash.

This punny spelling bee costume puts a literal spin on the classic school competition. Start with a black-and-yellow T-shirt, add bee eyes and antennae, then tape a collection of letters across the shirt to complete the look. It’s a simple idea that comes together quickly with just a handful of supplies. Pro Tip: No striped shirt? Use black duct tape on a yellow T-shirt, or yellow duct tape on a black one, to create bold bee stripes in minutes.

All eyes on you! They certainly will be when you walk into the party wearing this eye-catching costume. While there’s a good chance you already have a white T-shirt on hand, you’ll probably need to stock up on plastic eyeballs before you get started, so this is one DIY look that’s worth planning ahead for.

This “breadwinner” costume is perfect for anyone who’s held onto their old high school medals and has been waiting for a reason to dig them out. Pair it with a white T-shirt, bandana, running shorts or other athletic gear and, most importantly, a loaf of bread to bring the pun across the finish line.

While a serial killer costume might skew a little too creepy, this cereal killer costume keeps things lighthearted. Attach a few mini cereal boxes to a white T-shirt, then add a toy dagger or another obviously fake prop to complete the pun.

Don’t forget about your pup! This adorable “watch dog” costume turns a basic dog T-shirt into a wearable punchline with a few felt strips and printed watch faces. Arrange the faux watches around the shirt, slip it on your four-legged sidekick and get ready for plenty of double takes.

Looking for a joint costume that’s quick, simple, and easy on the wallet? This "green with envy" look checks all the boxes. For the "green" half, pair a green T-shirt with green hair color and face paint, then keep the "envy" side simple with a basic tee and a name tag that spells out the punchline.

A basic laundry basket, an old basketball, and some cardboard are just about all you need to transform an ordinary T-shirt into this over-the-top basketball hoop costume. Turn the basket into a wearable net, add a cardboard backboard, then cut an old basketball in half to create the headpiece that really sends the look over the rim.

Regardless of how you feel about the coming semester, you have to admit this school supply costume from Studio DIY makes the grade. We love the pencil and eraser looks, but for an especially simple T-shirt costume, try the lined paper idea: A few drawn-on horizontal lines and a red margin transform an ordinary white tee into a giant sheet of notebook paper.

Turn a plain white T-shirt into a bar of soap for a simple Halloween costume that’s sure to make a splash. White and clear balloons create the look of oversized sudsy bubbles, while a painted “SOAP” label across the shirt makes sure everyone is in on the joke.

This punny deviled egg costume puts a food-inspired spin on a classic Halloween look. Start with a standard devil costume, then add a white T-shirt topped with an oversized yellow "yolk" to turn yourself into a literal deviled egg.

This dust bunny costume comes together with just a few basic pieces. Pair a pink T-shirt with matching bunny ears, then carry a feather duster to make the joke instantly recognizable. This low-effort Halloween look works especially well when you need something you can pull together at the last minute.