Around 1995 or 1996 I got a handful of these from Dale Larson --- Intangible Assets when I purchased some products from him.
He gave the backstory on how he got then when he was at C=.
There were a few of these rectangular ones, and a few square logos with only
the Boing Ball.
I was tempted to stick one on an Amiga or two, but resisted, so have them in a plastic box in a drawer. ;-)