For the special edition I was half expecting a pair of those truck nuts people with bad taste put on their tow ball mounts, but I guess Duke testicles would be too large to fit in a reasonable package.

Those who've never had the pleasure to see them and don't know wtf I'm talking about:
http://www.shackpics.com/viewer.x?file=trucknuts_0ontueu2dqxe2nuapjrc.jpg