Signature Mineral Makeup - generous samples (found several 'doable' foundations)
Welcome to Elegant Minerals
Ocean Mist Cosmetics - generous samples, but I ordered too dark for me (overcompensating for below, I guess)
Mineral Makeup - Foundation, Eye Shadow, Concealer, Lip Colors, and Blushes by Everyday Minerals - generous samples, messy w/o sifters though (ordered too light)