Gust Bellows
The Gust Jar is an item that sucks dirt, enemies, and elastic mushrooms (used to fling Link across holes) into itself. This strange pottery is the main dungeon item of Deepwood Shrine in The Minish Cap.
The Gust Jar is also used for navigational purposes. While minish size, Link can jump onto lilly pads, then use the Gust Jar to shoot bursts of wind to propel the lilly pad across sections of water.
The Gust jar can also be used to suck in enemies and shoot them out, throw certain enemies off balance, absorb fire attacks, and remove fire scorching the ground. It's very useful for bringing hard-to-reach items towards Link.
The Gust jar is the key item needed to defeat the Big Green Chuchu in the Deepwood Shrine, as well as the Big Blue Chuchu in the Temple of Droplets.