Favorite nonviable move? Whether it be for aesthetics, fun, or whatever.

I really like Dream Eater and Mega Punch, especially in Gen III which had great animations for it. I also love Focus Punch, which is the most satisfying move for me, hands down. I know Focus Punch isn't totally unviable, but usually when it's suggested competitively, it requires a whole set built around it. So very niche.