Games Art And Music (GAAM), an organization dedicated to widening the acceptance of video games and gaming culture, is auctioning a replica Portal gun donated and signed by Valve for charity.
Signed by members of the Valve team, the replica Portal gun is being auctioned on eBay with 100 percent of proceeds going to Child's Play, a charity that provides children in hospitals with video games and toys.
The highest bid on the replica at the time of writing is $620 with 39 bids made. The auction will end on Dec. 28, 1:37 p.m. ET.