What's The Wackiest Ingredient You've Used as an Exfoliator?

What's The Wackiest Ingredient You've Used as an Exfoliator? In Touch reported that Halle Berry used coffee grinds as a body scrub when she ran out of her exfoliator. Catherine Zeta Jones uses strawberry seeds as a skin brightener and exfoliator (she claims it even whitens her teeth) and Christie Brinkley admitted to using kitty litter in a pinch since the main ingredient is clay.