This is a remake of the p-switch sprite from Super Mario Maker. These p-switches essentially act as a sort-of carryable platform that can disappear after a short period of time.
Additionally you can also make changes to some of the interactions and physics of this sprite.
Note: Separate graphics are used for the p-switches so that you can tell the difference between the vanilla version and the ones from Mario Maker.
As far as I remember these sprites from my SMM days, they feel about as good as they're gonna get for an SMW implementation. Nice features and ease of customization, especially for a held sprite. Only things that had to be changed upon submission were two instances of WDM #$xx (which crashes on the SNES Classic).