I recently just got a 3D printer myself, and found a couple people willing to accept BTC for filament and supplies:Open Source Powered
Cool guys, recently bought a bunch of colors from them.ProtoParadigm
Good selection of stuff, I just got laser cut spools so I can limit the exposure of my stash.
I also spoke with the guy who runs Makers Tools Works
in #reprap and he seemed pretty hip to accept BTC in the near future as well. Send him an email requesting BTC payments, and they should get on board pretty soon.
I only have a wee little Printrbot Jr., and I'm still learning to ropes. Managed to get it running rather stable though, a couple 8+ hour prints under my belt (in PLA). I might be interested in printing some of the smaller (130mm x 110mm x 100mm) things out for you if you had too much of a backlog, or helping out with design/modeling/conversion of formats.
Good luck, BTW. It's awesome to see what you guys are doing. XD
I forgot to add that I, too, have dabbled with a "Bitcoin Coin"
in the past...
OMG. How did you get the QR on there? I've been trying that for weeks.
On a side note, I use the Rep and Rep2, and I recently built a Printrbot JR (worst instructions ever).