I first started playing Howrse in October 2012 over on the international server (RIP to my old account). My main goal this time round is to collect a foundie pair of each breed in the game. Because of this I'm always looking out for new foundies (without affixes for aesthetics - unless the horse is extremely rare) to complete my collection and will buy them for a fair price. 

Breeds I Have Foundie Pairs of -

Akhal-Teke | Appaloosa | Arabian Horse | Ban'ei horse | Barb | Belgian Riding Pony | Camargue | Curly | Donkey | Drum Horse | Finnish | Friesian | Highland Pony | Holsteiner | Icelandic Horse | Irish Hunter | Kerry Bog | KWPN | Mangalarga Marchador | Marwari | New forest | Newfoundland Pony | Nokota | Paint Horse | Percheron | Polish Konik | Purebred Spanish Horse | Quarter Horse | Selle Français | Shagya Arabian | Shetland | Shire | Tennessee Walker | Thoroughbred | Vanner

Breeds I Have One Foundie of - 

Argentinian Criollo | Fjord | Knabstrupper