tinyE: Here is what to do instead of gambling that will save you the money and yet give you the exact same sensations.
1) Go out in into the desert and find a rock a that has been sitting out in the sun for a long time; one that is REALLY hot and preferably jagged.
2) Stick that rock up your ass.
3) After several moments of unfathomable pain and agony remove the rock from your ass and take a deep breath.
4) Go find another really hot/jagged rock and stick it up your ass, constantly saying to yourself, "Maybe this one will feel different."
I don't imagine this was the kind of tip the OP was looking for, but it's the thread-winner, as far as I'm concerned. XD +1