I'm going to inject something here - when they started to go back and forth on all this I threw us a CafePress. One of everything, slap the logo on it and no mark up. The only hard part is the time to tweak everything.
I've never linked to it ANYWHERE and a few people STILL found it and bought stuff. Our average member would probably buy a t-shirt and/or mug of almost anything - the logo, [redacted], [data expunged], something about their favorite SCP, etc. if one of our most talented artists donated their works specifically to "the cause" (I wouldn't feel right about it otherwise) they'd sell like crazy.
But that would require organization and (I feel) more formality then we've got.