Spin the Nail Polish
A twist on "Spin the Bottle," start this game by sitting all of your players in a large circle. Make sure everyone has clean, colorless nails before you start. Place various shades of nail polish in the middle of the circle and have one person choose a color to spin on the ground, just like you do with "Spin the Bottle." Whoever the tip of the bottle points to once the polish stops spinning gets one of her nails painted with that color by the person who spun the bottle. Keep playing until everyone's nails get a complete and colorful makeover.
Mirrorless Makeover
Give each player some makeup essentials like blush, eyeliner, lipstick and eye shadow. Assemble everyone in a circle and, on the count of three, tell all of the players to start putting on their makeup using the supplies you've given them. Set a timer to two minutes. When the timer stops, tell all of the players to immediately put down their makeup. Let the guests see how well they did on their self-makeovers by passing a mirror around the circle. After everyone's had a good look at their (hopefully) horrific makeovers, everyone votes on the player with the best makeover, the funniest makeover and the worst makeover.
Remember Your Makeup
Place about 15 to 20 pieces of makeup in a tray on a table so that all of the players can view it. After three minutes, take the tray away. Give the players each a piece of paper and a pen and tell them to write down every item they remember. Bring the tray back and see how many items the players remembered. For a variation on the game, let the players see the tray as usual. Then tell them to close their eyes or turn away. Take away as many items as you like and ask them which items (if any) you took. The player with the most correct guesses after several rounds wins the game.