In the mid-1990s, Peter Stone, son of Sam Stone who originally helped create Breyer Animal Creations, worked for Breyer most of his life but eventually parted ways and started his own company. Stone Horses are known for a handful of molds released in a wide range of special, limited edition runs and collectible decorator colors, as well as turning a popular Quarter Horse resin by Carol Williams into plastic. Today Stone and Breyer horses are the top two popular plastic model horse brands.