I taught one of my cats to be a sort of goal keeper. I used a tennis ball rather than a football though because the football would probably hurt him. I gently rolled the ball towards him and at first he wasn't interested. After a while he realised he would get a treat if he stopped the ball so he stopped the ball whenever it went in his direction. Now he'll chase it for hours just because he can; he doesn't even want a treat for doing it. He just does it because it keeps him amused.
You can teach your cat to use the toilet. I think that sounds and looks pretty funny
A cat I had years ago would come into the bathroom while I would wash my face and watch me. One day I heard splashing, and she was taking her paw, dipping it into her water bowl and splashing water on her face, it was real cute. Who said cats are dumb? Not me! I am right now having to type around my cat she is laying on my keyboard! Her name is sassy and if I ask her if she wants a treat, she meows and goes to the cabinet where they are kept!
I taught my cat to play fetch. I would take a milk ring from the milk jugs. Then hold the ring in the air and my cat would jump and meow to get it. I would then throw it far down the hallway or some where he could see it. He would then run after it and wait a few seconds and then carry it in his mouth and bring it back. He kept doing it over and over again!
How about walking on her two back legs. You may have to tease her with something to get her to do it for you. Peace
How about stay. Or sit. Or to play catch.
I like the skin the cat one in a gym