There have been many charities done for Child's Play. Live Streams, like the ones provided by the Dedicated Servers Charity Team are a common one, auctions are another. This time, we have an auction.
343 has graciously donated a Halo 4 Master Chief helmet and stand, signed by the 343 team. The auction will donate 100% of the funds to Child's Play. The winner will also receive a new copy of Halo 4, which 343 will provide separately after the auction has been completed.
Get out there and support a great cause!