You know what teens like?  The 80s!  Luckily, most of us were alive and thriving in the 80s, so we should have a plethora of ideas, right?

Some ideas:

Costume Party

Totally 80s transformation:  come normal, and get a hair, makeup, and clothing transformation

Play New Wave and other 80s pop music (borrow YA iPod, but give Jen warning to stock it full of theme music)

Watch popular 80s movies

Play popular 80s video games (you can buy games like pac-man that plug right into the TV for around $15

1980s trivia

Have a cart of books popular in the 80s.  Some ideas include books by these authors:

Lurlene McDaniels

R.L. Stine

Cynthia Voight

Lois Duncan

Paul Zindell

V.C. Andrews

Stephen King