Comment by LeoPanthera

Cyan, by the time they got Adam's dagger prop, figured out they could do the whole thing in CG and so did not use the prop. They still thought it was cool as hell and hung it up on the wall. It was only after MythBusters started airing that they found out it was Adam's work, because he mentioned it in an interview. As shown, it now has a place of honor today in Cyan's lobby.