(Anyone it would cause dysphoria for is exempt, obviously)
My wife thinks it's weird when I use my toes to pick up light objects and bring them to my hand (dirty socks, loose sheets of paper, etc), wait til she gets a look at my new trick.
Prehensile penis would make N64 controllers a lot more feasible.
Destroying my prehensile penis with that one Mario Party minigame where you have to spin the stick as fast as possible so Nintendo has to legally send me a one of a kind Mario Party safety condom
My partner has occasionally mentioned to me how useful it would be for me have one of those... but they've never revealed what they'd use it for...
First of all, I would google what the word "prehensile" means
Then I would try to jack myself off with it