It looks like we may be seeing a bit of pony over at Build-A-Bear in the near future. This was a response found over on their Facebook Page. The actual store tends to run with a default template then options for personalization throughout, so it could be a good way to get an interesting looking pony depending on what combinations they have available. Your dark and brooding black alicorn OC with red eyes may be impossible, but a Pinkie Pie wouldn't be too difficult! Their website lists everything from Angry Birds to Hello Kitty. Hopefully the pony template is more show accurate than what we usually see!
Thanks to KShrike for the heads up!
