The Ghostbusters' Stay Puft Marshmallow Man figure is the largest item ever made by Mattel and sold at San Diego Comic Con. Standing at over 20" tall, the piece is made from soft foam and features articulation at the arms, head and legs. A huge city diorama is included in the packaging. And while he’ll first be available at SDCC, he will make his way to MattyCollector.com. It will be available for $70.00.