And yeah, a Toadette. Because, I think the Toadettes and the Toads (not the amphibians of course —;) are joyful, and love parties. I don't have any difficulties to do that Toadette Pinkie thought.
Ok then, hope you'll like it, everypony!
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PS: I can tell you that Fluttershy will be a Toadette too, Rarity a koopa troopa, Rainbow Dash a koopaling, Applejack a Yoshi, and Twilight Sparkle a princess.