One of the joys of garage saling is when you find that lost piece of your childhood, a forgotten memory of wildly slapping a plastic paddle and watching neon pink and green balls bounce erratically about. I'm talking, of course, about that slap-happy game by Parker Brothers, "Gnip Gnop".
Designed by toy and game wizard Marvin Glass, inventor of classics such as "Mr. Machine", "Rock 'em Sock 'em Robots", "Mousetrap" and "Ants in the Pants", "Gnip Gnop" ("Ping Pong" spelled backwards, of course) was released in 1971. I received mine for Christmas around 1974. Mine didn't survive my youth, but I found this replacement for $6 at an estate sale.
My only problem as a child was I typically didn't have anyone to play with, so I was doing both the "Gnipping" as well as the "Gnopping".