I have opened a cafepress shop with some Lisp and SBCL branded merchandice -- currently mugs and T-shirts, including zbir's infamous save-lisp-and-die -design.
I've been intending to do something like this for ages now, but never got around to it before. Everything has a markup of around 50%, and the proceeds go towards funding SBCL development.
The crowdfunding thing is still on. More on that soon.