Papercraft ponies used to be a big thing way back in the early days of the fandom, and it looks like the concept has been officially licened by a company called Cubles. Right now they are offering three different characters each for $7.99 or $19.99 for the full set, including Fluttershy, Twilight, and Applejack. Each comes with a pre-cut construction kit to follow along with and build a pony.
Tou can find the full page for them over here if you want to do that!
