I was catching up on reading today and saw that Instructables had a how-to on “tattooing” a banana, also called banana oxidation art. I had bananas available, so I printed SQLSaturday on some paper, taped it to the banana, and starting punching holes with a straight pin. It only took a few minutes to do. The example on Instructables has the Cat in the Hat! Doesn’t seem like it would be too hard to make a stamp of sorts so the banana could be quickly marked. Who will be the first to sell a banana sponsorship?
Maybe not practical, but was a fun few minutes with the family.