Attendee auction for charity

This idea came to me last night, and while it isn't original, it isn't something widely done by the attendee body. The staff of Matsuricon has been very open-hearted when it comes to raising money for good causes. A lot of money was raised for all sorts of medical research and was on-hand when Nobuo Uematsu was kind enough to offer to auction his personal purification crystal and tuning fork which he used consistently while on the road. It sold for about $500+ dollars.

I'm thinking of trying to put together that sort of thing run by the attendees and panelists. Perhaps one night we select a time and place in a panel room, have an hour or two where we auction off items for others, autographed goods and dvds and the such. I have entire cosplays I would love to get some money for and put towards a good cause. We could make a pool of items, auction them off one by one, 100% of the money made from them goes to a charity.

Opinions or thoughts?