Lukas Podolski played head tennis with a seal at some point recently.
I don't understand how you train an animal to do something as cool as this but if I could learn that would be useful. There isn't a woman alive who wouldn't be impressed enough by my head tennis playing seal to have sex with me, unless of course I trained the actual Seal to do it, in which case I suspect they'd prefer to have sex with him. This plan is really complicated