I found a purple satin glove signed "Kissy, Kissy, Miss Piggy" at a thrift store. It's framed and in good condition. There's no COA, but I can't imagine it'd be anything but genuine. I've scoured the internet, but haven't found anything similar except for one glove that was on here about 14 years ago. Does anyone know about this sort of thing? How do I figure out its value?