Not sure the big happy ball will work after all (I just tried it myself). There's some upper body while the rest of you is on the floor stuff, though.
NB: the ball itself is fun. Makes one feel pleasantly silly. If it wouldn't have totally disrupted things, I'd have whipped it at the dogs in play. Fang, puncture, hisssss: no more ball for Claudine.
Dogs and nature abhor a vacuum.