Marvin Glass and Associates

Marvin Glass and Associates (MGA) was a toy design and engineering firm based in Chicago. Marvin Glass (1914–1974) and his employees created some of the most successful toys and games of the twentieth century such as Mr. Machine, Rock 'Em Sock 'Em Robots, Lite Brite, Ants in the Pants, Mouse Trap, Operation, Simon, Body Language, and the Evel Knievel Stunt Cycle.