How about "Kacks and Ballz"
or "Dr. Dirty Deedz Dimmly-Dank Depository of Doodily-doos"
or "Doc Johnson's"
I've got a few more, I'll tell you those in a more appropriate manner... the trick, is to think of something very sleezy, that has a double meaning which is very normal. That way, your sign might not offend any people in the area who might live there or complain to local aldermen.
C