I know the Southwestern Herpetological Society, which is a 501C3 sells T:cens0r::cens0r::cens0r::cens0r:s and hats at shows and to members. I don't know what they have to do to claim that income, but I could put you in touch with the book keeper there. I can't think off the top of my head who it is, but I could find out later today if that's any help.