Instantly inputting an A move after grabbing an item with an air-dodge will cancel the air-dodge completely. As Peach, this allows for some amazing turnip shenanigans! This technique works on ALL characters at different percentages (timing and spacing has to be adjusted), starting from about 30% on Jigglypuff (lightest character).
I'm pretty sure a stitch-face turnip will 0-death using this technique. Also, it is possible to repeat short-hop > throw > throw > etc... as many times as the stage length (and character %) allows. For example, a regular turnip could potentially kill DK from about ~50% if followed up perfectly!