Cakehole is a popular BDSM club in NYC. Pretty much anything goes at the club besides consent violation, barebacking, getting excess fluids on things, or generally being an asshole.
Dungeon Monitors make sure people aren’t acting a fool, and it does take place in an actual dungeon, so there’s lots of equipment and toys around (though definitely BYO, when it comes to toys and booze alike.) Also, there is sometimes cake.