Regulars to this blog may remember I once put up a picture I found on Break (or was it Something Awful) of this absurdly detailed Etch-a-Sketch drawing of Heath Ledger's Joker. I haven't the damndest idea where I left it, but anyways, I found better. Check this out:
Found this and a few more here. Apparently, each takes about 70-80 hours and can command prices of up to USD10k. The artist's website is here. Go see!