As children, we were all envious of the tee-shirt transformation in "Aquamarine" (tee shirt=cute sundress). So if you find yourself struggling to come up with the perfect Halloween costume this year, or just do not have the time or motivation to put something together, here are 15 ways you can effortlessly dress up a tee shirt. These ideas are so cute people will think you've been putting your costume together for months, not minutes.

1. Mike, Sully, and Boo from "Monster's Inc"

There's nothing "scarier" than going as a couple of your favorite childhood monsters!

2. Piglet, Pooh, and Tigger

This look is simply adorable.

3. Doodlebob

Try going as the iconic Doodlebob! All you need is a sharpie, a white tee shirt, and one very large pencil.

4. Netflix and Chill

A simple yet classic look. Going as "Netflix and Chill" will definitely make it look you spent hours coming up with a clever pop reference for Halloween this year.

5. "Man's Biggest Fear"

Perhaps the scariest costume on the list, wearing this costume is guaran-"teed" to make you the most terrifying thing at any Halloween frat party.

6. Lilo and Stitch

Another iconic Disney duo! This costume is perfect for you and your laziest friend!

7. The Chic-Fil-A Cow

One of the easiest costumes on the list! All you need is a white tee shirt, a black marker, a red marker, and paper! It takes less time to put together than it does to go through the Chic-Fil-A drive through!

8. A Cactus

There is no costume that screams "2017" like dressing up like America's favorite houseplant. Your succulents will be flattered.

9. Assorted Fruits and Vegetables

A great (and easy) costume for you and your group of friends! Bonus points if someone dresses up like an avocado.

10. Kuzco from "Emperors New Groove"

Warning: this costume might fill you with the urge to show off your new grooves.