T-shirts, thongs, and various other pieces of merchandise are available through cafepress. As of yet, I don't have pictures, except via cafepress. If you get something and you take a photo of yourself wearing it, I will put it up. If you want something that cafepress makes and you don't see it here, please email me. Also, I went for the free experience on cafepress, so my stores aren't linked together except here. Everything is called gronbeckistan#, where # represents an actual number, like 1, 2, 28, whatever. I make $1 per item sold on cafepress.

What I've got:
Look Out, Monsters! shirts
Enticing Sidekick shirts
Devil Penny shirts and underwear
The Brain shirts
Eau de Hot Cunt shirts and underwear
Line forms here (last frame of homoflexible) underwear
When I was little frame 2 tank tops
Last frame of Frank Black show t-shirts
Similarity is not unity t-shirt