Those knockoff pony plushie guys over in the wonderful world of Hong Kong look to be expanding in to the greatest and most powerful pony in the show. Trixie has appeared over on an Ebay auction, though she isn't in the usual multi-available form that these guys usually pop up in. I'd bet we will see that soon though.
Super important facts to gather from the image:
No hat or cape
Horn so long and pointy! Even for Trixie!
Dat Tail is way too short!
Thanks to Feli for sending her!