OK, I'm being serious when I say this, but, an Adult Shop. They get so much money, yes, it's partly disgusting, but, you can get a lot of income from it. Orrr...Try a Food shop of some sort. Only, serve food that is direcxted towards your target market, liek if it's teens, serve pizza, ice cream, milk shakes, burgers, and things liek that. If it's classy, serve lobster, or higher end culinary foods. I'm an Advanced Culinary Arts student, and we actually had to open up our own restuarant within the school, and I must say, it takes a lot of know-how to get the right foods. If you're interested in that sort of thing, send me a PM and I'll lend you any assistance you may require.