1. Mia Thermopolis and Lilly Moscovitz
If you've ever seen Princess Diaries, these two are a perfect best friend pairing. Channel your early 2000's and you're already there.
2. Mermaid Man and Barnacle Boy
Everyone loves Spongebob, and these two are classic.
3. CatDog
It's easy to dress up as a dog or a cat, especially when you're looking for a last minute costume, but adding the CatDog factor makes it more interesting and flashes you back to your childhood.
4. Lilo and Stitch
This costume will also having you flashback to your childhood. If you choose to do this costume, a hula dance is required at any event you attend.
5. Frat Bros
This costume would be easy to throw together, especially with the help of your guy friends who happen to be in a frat. Turn your hat backwards, wear pastel and "suh dude" your way to the party.