Kevin Core is showing that his imagination as an amateur computer modder is matched by a natural sense of marketing. Last year he impressed many Cravers with his "Tumbler Batmobile PC," built from a remote-controlled toy purchased at Wal-Mart. Now, after waiting patiently for several months, he has put the creation up for sale on eBay--just days ahead of the much-publicized release of The Dark Knight.

In addition to the 2.8GHz AMD Sempron chip and other specs mentioned when it first went public, the Bat-PC has a "stealth" power switch and three orange LEDs that "simulate the jet exhaust," according to the auction description. Somewhat surprisingly, however, the bidding hasn't even cracked $250 as of this writing, a paltry sum that would be an insult to any self-respecting winged avenger.