In fourth grade I invented this, only mine was cooler. I did a science fair project on the best way to keep bananas fresh (my mom even took me to visit the Chiquita factory!). It’s actually best to put them in a black, vacuum-sealed bag, so my version was opaque black and had a little hand pump for easy at-home vacuum-sealing. I had never been exposed to this idea before. My family and everyone I knew (and everyone I know now) kept bananas out in the open. So I’m pretty sure it was an original thought.