Looks like a jaw bone and some kind of modern looking egg chair lol
Perhaps the egg is the throat? Close up of some screaming 😱 My kids have a love/hate relationship with pop up skating rinks. They played hockey for years so are quite good skaters. They love going with friends to show off but hate being shouted down for skating too fast lol
Ha it probably was a severed tongue, yipes next time I go back I'll try and see what that painting is about. There were some serious speedsters on the rink. Being from the desert, I can't skate at all.