A couple of Galileoscopes, the low cost relatively high quality telescopes created for the International Year of Astronomy, 2009, have been signed by some celebrities and are available to bid for on eBay.
One has been signed by Battlestar Galactica star Felicia Day and the other signed by part of the Ghost Hunters International cast. For every fifteen dollars of the winning bid, a Galileoscope will be donated to a schoolchild. The telescopes offer views at 25 and 50x magnification of the sort of things Galileo would’ve seen (though with much better optical quality).
Both auctions will run until the 1st of October.