I've been playing around with purpose-built spamtraps lately (and hope to post some comments on what I've learned at a later date). However, my spamtraps are purely virtual. Artist Bill Shackelford's "Spamtrap" is a different matter entirely.

I assume that when his printer runs out of ink, he is careful not to order refills from one of the many inkjet cartridge spammers around. That would be a little ironic, all things considered.