Calvin and Hobbes by Bill Watterson for January 09, 1990
Hobbes: Have you tested your duplicator machine yet? Calvin: I was just about to. You can help. Hobbes: Oh boy! What will we duplicate first? Calvin: Me! Hobbes: You?? Calvin: Yeah! Mom wants me to clean my room, so I'll duplicate myself and let the duplicate do the work! Smart, huh? Hobbes: I can picture the look on your parents' faces when they find out they've suddenly had twins. Calvin: Twins, heck! This summer I can make a whole baseball team!