I think this is an original idea. Keyword is think.
Okay so here is the description of the fic.

Mysteriously, Sweetie Belle, Scootaloo and Apple Bloom wake up that's not the mysterious part, but not as ponies.
Will they discover how this happened? Or not?

If anyone wants to read the WIP so you know what to draw, the unpublished view password is speciesmarkcrusadersYAY!

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It's always mysterious when I wake up.

My brain shut off. Then it came back on! I can't remember anything that happened for hours, and I may remember totally imaginary things!

Sleeping is weird.

--Sweetie Belle

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Can I see it ?
p.s. I'm not going to draw

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Of course! Unpublished view password is speciesmarkcrusadersYAY! - including the exclamation point.

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Ummm.. How do I get to the story

I think you need to give me the link

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Okay. Here. It's not finished yet it only has, like, 300 words right now.

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She looked at her flank, seeing that her wings remained, although they were striped like the rest of her coat seemed to be. Am I a zebra?

I think the word you are looking for, is
Zebgace

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Maybe. I can probably try to find a word, and if I can't I'll use that.