I've been staring at the monk a bit, and I've realized that, technically, if you trade away your first level monk bonus feat (and thus Stunning Fist) for an ACF (such as, say, Nauseating Strike) and then take it later with a normal feat slot, you'd still get to add your Monk level to your Stunning Fist uses/day.

Outside of waiting until your BAB eventually gets high enough to take it normally or taking the first level of Monk, are there any ways to nab Stunning Fist without meeting its prerequisites? Some ACF for another class that gives you Monk bonus feats, perhaps? Or a prestige class that gives it to you if you don't already have it?