It's being auctioned on E-Bay. According to the seller:

The winner of this auction will receive the following items - The Gum, the sign that he tore the corner from, the actual game ticket, the game program, and the towels that were given to all the fans to wave around and stir up a frenzy.

This is a must have package for any Boston Celtics fan, Paul Pierce fan, or any other fan of strange and odd sports memorabilia. You could also use this to harvest DNA of one of the best pro basketball players in history, and use it to clone your own team of trigger happy small forwards.

If you like to collect Celtics memorabilia this is certainly an unique package.