Indie Game Developer Bread released a very special Super Mario Sunshine mod during the holidays allowing every NPC in the game to throw Mario over their heads without considering his safety. What a wonderful gift!
This ability is lifted from the Chucksters, a group of throw-lucky Piantas who are at the core of a particularly frustrating Sunshine bonus level where Mario’s only road between a series of distant islands is through his life in their hands. It means that even a small mistake in the position can send the poor plumber flies into the abyss.
While Chucksters would eventually appear in Super Mario Galaxy 2, they are especially known for the devastation they inflict Super Mario Sunshine. That said, I do not foresee problems with every character in the game getting the same ability.