Bucket (Yoshi's Island series)
From the Super Mario Wiki, the Mario encyclopedia
Buckets, also referred to as ? Buckets, are objects appearing in Super Mario World 2: Yoshi's Island, Yoshi's Island: Super Mario Advance 3, Yoshi's Island DS and Yoshi's New Island. They tend to appear in fort or castle areas and levels, beginning with Burt The Bashful's Fort. These buckets can be found hanging on walls or ceilings, and the Yoshis can knock them down by throwing an egg at them, producing coins or enemies. Some levels have buckets positioned over a body of water or lava, and knocking them down allows the Yoshi to cross that area using the bucket until they reach the other end.
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