This was made from a Scootaloo brushable. She was painted with acrylics and the hair was made with colored sculpey, which was then sealed with sculpey satin glaze. I know that she doesn't look exactly like her filly shape from the show, but I figured she has to have looked like this at some point.
She was sold at the September BroNY meetup, but I can make more of her if requested. She's $30 for commission.