The really colorful arty ones by FatCat, right? Love them. But I do think it's funny that Nicky is trying to take over the one that's almost as big as he is. I think it might be time to get him a new cat-sized frog. He and Max also have the playmats that you can put catnip into. They love them. Max doesn't seem to mind that his once belonged to Boo.