I need funny, and modest costume ideas for my school Sadie Hawkins dance! Any Ideas?

My school's Sadie Hawkins dance is coming up this month, the theme for this year is "Jungle Fever"...My friends and I want to dress up in some kind of cool costume, but not spend too much money and so on. I need ideas and fast!
Sadie Hawkins = a girls choice dance where you can dress up in matching costumes and everything. Thing is, the theme this year for Sadies is "Jungle Fever" and my friends and I don't have any good ideas for costumes. I need help, and quick!!!!