When I, Kevin, was a youngun in Iowa my parents would go to a restaurant called The Cove in Tipton, Iowa. I remember one of these green monsters from then. That particular one is not there anymore, but this one is.
You are looking for a magnetic key holder that is near Dino but you don't have to disrupt his beautiful redwood mulch.
Congratulations to Celticus and Tuxedo@cat for being first to finds. I was trying to figure out how to leave a prize for ya'll.