It looks like Yandy.com wants to jump on the pony train. These costumes were recently listed for the 2012 holiday season. While not all of them actually list the pony they are mimicking, hinting at them being somewhat "unnofficial", the Pinkie Pie one does drop it in the description of the piece. They are all Yandy.com exclusives with 100+ dollar price tags. Hope all you girls out there are in the Halloween mood!
Have a list:
Thanks to Dawn Sundancer for the heads up!