Chad Valley Designabear has added a pony to their line-up! This Twilight Sparkle dolls sits in a very cute teddy bear-style pose. Like other Designabear products, you can dress Twilight in various outfits and accessories (some found here).
You can buy her now on Argos' site on sale for £11.99 (reg. £14.99). She comes with a passport, birth certificate, and carrying box, seen below.
The website also briefly displays an image of Pinkie Pie before loading Twilight, which leads me to believe she may have a Designabear of her own eventually!
(via Strawberry Reef)