Usually anything they have in a drugstore or at Sears. I think MMU Cosmetics has some pretty (okay) not really good smelling stuff (some is good, some stinks). I have bought from some REALLY good etailers before, different fragrance scents, and some REALLY bad (I'm a pro at it!). Usually people cannot do a "CARAMEL" scent for the life of them. It ends up smelling like urine!
Some people cannot do chocolate scents, either, it takes skill!