I found out recently that Chessex will do custom, laser-engraved dice, in fairly small batches are for a lot less than I'd think. (As few as 10 dice, and at that volume, it's $1 per custom face.)
Taking inspiration from the image on the Monster of the Week IndieGoGo campaign and bolstering my largely-nonexistent artistic skills with bits from openclipart.org, I put together a Scalable Vector Graphics (SVG) image, worked with the *amazingly* helpful folks at Chessex, and just today received 13 pairs of dice for our recently-started Monster of the Week campaign:
(Original SVG available public-doman, CC0, unfettered, have a party, at
http://personal.stevens.edu/~jformoso/motw_logo.svg)
The guy I worked with at Chessex, by the way, was incredible -- attentive, professional, and helpful, and didn't care in the least that I was only going to order a very small batch of dice. Delivered, my order came to a grand total of $29.50.