When I saw The Lego Movie for the first time, I find UniKitty to be almost similar to Pinkie Pie. And though it's a different actress voicing her, I kept thinking that UniKitty is like a watered-down version of Pinkie, but have the same colored eyes and personality. So, this is what I came up with.

There's a party being held at Sugercube Corner and UniKitty walks into it uninvited. Fluttershy confronts her and says she's not invited, for she's not from Equestria. But UniKitty confesses that she's Pinkie Pie, for she as just come from the wrap party of The Lego Movie and wants to say that everypony is invited to the premiere of the movie. Fluttershy doesn't believe it until UniKitty takes of her head to revel that it's Pinkie. Fluttershy stares at her in shock. But Pinkie quickly asked, "Is this party for me?"

Made in Photoshop.