Green Shells - Arrows
Red Shells - Boomerang
Blue Shells - Bombchu or Magic Boomerang
Placable Bomb - Bomb
Mushroom - Pegasus Boots
Starvincability - Either gold Kinstone or Force Gems
Ghost - Probably just a Bottle, swipe and steal.
Lightning - Ether Medallion
Bananas - No idea, could be a dumped Bottle of water or Chu Jelly, the sprite being where the Chu goes into the ground most of the way.
Also, Bullet Bills should be flying bombchus imo.
These are all from the 64 one, havn't played the MKWii. Just some Ideas.