Radical Idea here!!! Bottled Tornado for Bananas. I've wanted to use the idea in my Zelda fan game, and still am planning to, but I think the MC tornado would be a great banana, have you spin around like four times or something.
I think I like the Triforce / Force gem for invincability, and honestly, i have NOOOO idea where the Feather came from, certainly not MK64.
And honestly, we could branch out a little, add different arrow shots, freezing, fire, light, etc.