You should be able to track some down quite easily at any local Martial Arts Supply Store. Have a look in the phonebook for martial arts supplys. The first place you look should have them. If in the off chance they don't, they you could order a pair off the interent.
I dont know whether you have the same laws in USA as we do but to buy a set of chucks from a MA shop you have to be able to prove you are a member of a MA club in some way or other - or look as if you aren't likely to go off bashing in people's heads and robbing them...
As far as I'm aware, we don't have to do that here in the UK. I think some sort of thing like that may be good, just to stop random headcases buying swords and things.
