Or still warm, at least: Illinois Senate Seat on eBay. C'mon, you knew someone would do it.
Update: Yanked by the 'Bay, of course. Here's a search results page -- I'm liking the "classified ad" T-shirt and the toy Senate seat with rat figurine.
The ad I found looked looked like this:
T. R. MCELROY'S STREAMLINED TELEGRAPH KEYS
11 months ago