well everyone... that is a nice
writeup, but it covers very little of
how to get it from a
prostitute. First of all, $250 is way too much unless you get to
fuck a model.
Adult bookstores and brothels are good places to meet prostitutes that will run you more like $50-100. You can also usually get a $20-40 hummer at shady adult bookstores in the midwest. The table advice thing is good though. Even at brothels, she'll have you put the money on the table, and most won't tell you an exact amount either. They'll just keep motioning for more until she's doesn't think she can get anymore. You've got to haggle a little bit in these situations.
As for how to get the unusual stuff: ask. She's a professional. She's not gonna get embarassed. She's had people ask her weirder shit than that. She might say no, but she's not gonna get offended. Hell, you're committing a crime to get off. You might as well get the groove you want. Try something like holding a fifty in your hand and saying "I can think of way I'd forget this on the table." Then asking for the kinky shit you want. Of course it's crude. But it's sex for money, that's all.