A DeviantArt user who I can’t name right now tried his hand at making a ROM Hack of Super Mario Bros. 2 a.k.a. Super Mario USA on NES with the intent of implementing gimmicks from the ROM Hack, Sonic 2 XL, but to Princess Peach only rather than all four characters. But, due to technical limitations of the NES, he decided to drop the project and make a GIF animation instead.
Edit: After starting this, I started to remember an idea I once had for a Flash animation, prior to Flash being discontinued, using the All-Stars versions of game assets where after she plucked a vegetable, Peach would eat it, and repeat the process with each vegetable plucked, with Mario, Luigi, and Toad helping as she got fatter, with the three not just plucking vegetables, but also moving her around, with the animation finishing with Peach eating endlessly from the Dream Machine in Wart’s room, forcing Wart to leave out of frustration due to not just her gluttony, but also Peach being completely immune to the bubbles he spat out (with the only non-game sounds not just being the voiceclips of the four playable characters lifted from other Mario games, but also a humorous voice clip taken from the SpongeBob episode SquidBob TentaclePants where a fish, in response to Squidward’s cacophonous clarinet playing having blown his flesh off after Squidward and SpongeBob’s successful separation by Sandy, “ragequits” before everyone else in the audience in the stands joins him), before it’s revealed at the end to be a dream by Peach herself, just like how the events of the game were a dream by Mario. Unfortunately, due to Flash’s discontinuation and my inexperience with the now-defunct free Flash creator, Vectorian Giotto, the closest thing to my vision is another GIF animation made by a different DeviantArt user where, after becoming her Super height, every mushroom after the first one that Peach comes in contact with makes her fatter until she’s immobilized.