Spider Head Mold on Ebay
This is supposedly a mold from the actual spider head...quite pricey... http://cgi.ebay.com/THE-THING-SPIDER-HEAD-ALIEN-MUTANT-HORROR-PROP-PUPPET_W0QQitemZ190234151619QQihZ009QQcategoryZ60360QQssPageNameZWDVWQQrdZ1QQcmdZViewItem