- WWE Hall of Famer 'Rowdy' Roddy Piper will be participating in the 14th annual G.I. JOE Collector's Convention, hosted by the G.I. JOE Collector's Club and Hasbro, Inc. Piper will become an honorary member of the COBRA forces as attendees will be able to purchase an exclusive, limited-edition Piper 3 3/4" scale action figure. The Hot Rod will also participate in panels and sign autographs tomorrow during the convention. The convention is taking place at the Atlanta Marriott Marquis Hotel and started today and ending Sunday.