Get into teams of 2 or 3. One person is the hair model & the other team members are stylists. Set a time limit and see which team can come up with the craziest hair ‘do’.
Make sure you have plenty of colorful elastics, bobby-pins, hair berets and hair bands. Hairspray and a hairdryer will give you more chances to make up really crazy stuff.
If your parents are ok with it, you can also get some of those temporary spray-on hair color spray cans. Just make sure you don't get the color on any furniture, carpets or hard to clean places (including the dog@!)
Set a time limit and then the hair models will be announced and can do their runway walk. Prizes can be awarded for most amazing, funniest, wildest, most colorful etc...