My pal
melydia is a fervent BookCrosser. Her local group is auctioning off some boxes of themed goodies to help raise money for their next big convention, and she thought I might know people who would be interested in the HP box. You don't have to be a registered BookCrosser to bid.
Read about the box and its magical contents here:
http://www.bcindc.zoiks.org/?p=159There's also links to other boxes on the side of the page, so if Harry's not your cup of tea, you might want to check it out just in case something else appeals.
And please feel free to spread the word!