See Test 1 (And her Special somepony) Here
http://velveteen-vixen.deviantart.com/art/Castle-Pone-Base-Test-Aldmeri-562490598

This is Analee, a castle pony I've made using a "MYO slot".
( Proof of purchase ) :
http://castle-pony-kingdom.deviantart.com/journal/MYO-AUCTION-CLOSED-535995006

Castle ponies are a closed species by themoosewhisperer on DA
http://castle-pony-kingdom.deviantart.com/