Hollywood Brother,
I had the opportunity to try it one time several years back... unfortunately, I would call the itching powder I got "reasonably ineffective" at best. It was purchased through one of the gag gift stores similar to Spencer Gifts, if I remember correctly, so it probably wasn't really 'the good stuff' anyway.
Couple that with the fact that the young lady who I spend my time with doesn't really have super sensitive feet anyway, and it was pretty much a flop. She barely noticed any sensation at all when the itching powder was applied (she was blindfolded at the time), so I would chalk it up as a failure.
But the failure of the itching powder certainly didn't stop me... after all, she was still sitting there, immobile in my homemade stocks. There was still plenty of evening left, and plenty more ways to try to get a laugh out of her!
:happy: