I've never done this... but I'm having a SUMMER PRINT SALE! All of my prints are 20% OFF for just one week. This includes the 8x10 signed prints, as well as the large unsigned prints.
Use coupon code 'SUMMER' to get the deal. Offer ends on July 4th, so get over to the shop!
(Photo taken by my wife Kristen. Yes, that's my arm in the photo.)