Would You Rather?
Teens will have fun asking each other to make random choices such as, "would you rather eat only bologna for an entire year or not be able to taste anything for the rest of your life?" Questions can be created before the sleepover and written down on index cards. Teens can pick them randomly from a box or they can come up with their own on the spot. Premade sets of questions also are sold in most stores that sell board games.
Karaoke
Buy a karaoke machine and some karaoke tracks and have a karaoke competition. Prizes can be awarded to the best karaoke singer, the worst karaoke singer and the most animated. If you do not have a karaoke machine, teens can just put on music and sing along to songs for a makeshift karaoke competition.
What is it?
Turn off the lights and pass around bowls and boxes of random items that have a weird feel, such as lima beans, peeled grapes, spaghetti and rubber gloves. Teens have to guess what each item is. Throwing in items that could easily be mistaken for something gross, such as a damp sponge, twisted pipe cleaners or dried fruit, can make for a more exciting game.
What will you eat?
Raid the refrigerator and have each person create a gross food combination, such as a ketchup, chocolate sauce and turkey sandwich. Once each item is created, the creator must dare someone to eat it. Teens will have fun seeing all of the crazy things their friends will eat.