Carrot

Carrot is an item that appears in Super Mario Land 2: 6 Golden Coins. It transforms Mario into Rabbit Mario.

Carrots will later appear in Mario Kart Arcade GP 2 as items. However these carrots will have bunny ears on the top.

Carrots also appear in the Super Mario Advance and the Super Mario Bros. 2 remake featured on Super Mario All-Stars as platforms. They only appeared in two levels, though.