K'nex Thompson M1A1 "Tommy Gun" By A Magical Effing Unicorn in LivingLEGO & K'NEX2,989316Introduction: K'nex Thompson M1A1 "Tommy Gun"By A Magical Effing UnicornSteel Titan ForgeFollow More by the author: About: Just an ordinary guy making knives in his backyard. More About A Magical Effing Unicorn »Dance, peasants.