I have enjoyed playing this game for several years. 

Topaz links. You can stroke up to 5 a day to receive 50 E or a diamond from each stroke.
http://www.howrse.com/elevage/fiche/?id=36608519
http://www.howrse.com/elevage/fiche/?id=3660856
http://www.howrse.com/elevage/fiche/?id=18837804
http://www.howrse.com/elevage/fiche/?id=18839986