U.S. stamps to honor Iraq's fallen?

Elizabeth Thomas, the UC-Berkeley curator who sent me a link about artist Steve McQueen's project to honor UK on stamps military personnel killed in Iraq, followed up with an idea: The US Post Office has an online system anyone can use to upload an image and have it custom-printed on actual stamps. "Less distribution (and therefore less emotional power) but it would be possible," she writes. Anyone want to give it a try?