The Gil Kane Punch of the Week 34: The Punch Came C.O.D.!

From Green Lantern 37 (June 1965), in a story called "The Spies Who 'Owned' Green Lantern!" comes a rather unconventional punch:


In this story, written by Gardner Fox and inked by Sid Greene, Hal Jordan finds himself under the hypnotic spell of a spy ring, so in order to break that spell, GL commands his ring to shrink him down in his sleep, and then he has Pieface mail him to the spies. This plan doesn't really make any sense, but it does give GL this opportunity to punch his way out of an envelope.