Foil Fashion Show
Split guests into groups of two or three and give them each a few rolls of foil. Have the kids create outfits for each other with the foil. Encourage them to invent crazy and over-the-top creations and add crazy makeup and hairstyles to complete the fashion looks. Next, put on some music and clear a path for a catwalk. Have the kids model their foil fashions down the catwalk.
Make-Unders
If you&'re hosting a sleepover for girls, have your guests bring all the makeup they have. Split the girls into groups of two and set out all of the makeup. Have both girls on each team give each other a make-under, the opposite of a makeover. They should use the makeup to make each other look as crazy as they can. The team that creates the craziest looks wins. Take pictures to remember the night.
Truth or Dare
Truth or Dare is a classic sleepover game that can get pretty crazy. Have all the kids sit in a circle and pick someone to go first. Ask that person to choose "truth" or "dare". If the person chooses "truth," ask him a personal question. He has to answer it truthfully no matter what. If he chooses "dare," then the group has to think of a crazy activity for him to do. When that person is done with his turn, he then challenges another guest with "truth or dare?" and the game continues until each person has had a turn.