Hoo boy...a quite amazingly done and veeery strange and cursed comm, depending on opinions by the talented Rex-equinox! If there was some Crack Ships...how about a Crack TF? Which isn't a shitpost or meme-like transformation but a genuine sort of effort to make an appealing transformation? Here we got Twilight Sparkle becoming the ever eponymous Thomas the Tank Engine, thanks to some conveniently placed magic shed buffers!

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The last but certainly not least was soon to come and the last leg of Twilight's ponyhood...and womanhood were soon to be knocked down like a obsolete building meant for demolition. The soon to be not-pony-faced engine would feel a huge surge of swelling in her nose as it suddenly bulged out into a bulbous shape making her grunt, along with the mouth separating from it entirely destroying the equine snout's anatomy as a whole.

Also to note was her voice was now growing deeper and deeper, still sounding youthful as ever but all the womanly tonne to it was soon being smelted away in her vocal cords as the octaves dropped considerably.

Her eyebrows also grew a lot more, becoming triangular and blacker as the lavender fur color of her face began to desaturate and become a more dulled grey as her muzzle entirely began shrinking inward into her face with no remnants of horse anatomy left behind.

Her eyes also had a makeover becoming a lot more perfectly circular than ovular, the pupils going from anime-esque eyes with a purple iris to more simpler, perfectly circular solid black eyes with the catchlights retained. This didn't really affect her vision that much but it also were a window to how much her personality was changed into that of a really useful, cheeky and proud to be friends with many others.

Her mane would just wilt away like unwanted weeds, darkening till they were assimilated into the smokebox where her face was located. The last of the changes pushing in her head and shrinking her nose and mouth till they were at the right size, the manhood...completely wheeshed away as signaled by a stinging feeling as now his face was that of a youthful, gray skinned human-like face with a rounded nose and circular eyes, with the body of an E2 class Tank engine.

He gave a big gasp after his face was done making the final changes, his voice now sounding fully different and nothing like his old more mature-like feminine voice. He could only stare with widened solid black eyes on what changes had befallen him now.

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Feel free to fave, share around and comment your thoughts down below! Though...Derpibooru is probably gonna have my head for me with downvotes but i understand and that's ok. Not everyone's cup of tea and its their opinion. I hope this is an inspiring pic for many others for how the most unusual TFs can come from the most unexpected places.

Art belongs to Rex-equinox
MLP FIM belongs to Hasbro
TTTE belongs to HIT entertainment and Mattel