This collection by Vivid Imaginations (sometimes Vivid Toy Group) is more realistic-style horses, but I keep getting them in pony lots, so I’m giving them a page. They are marked “VI” and a year at the top of a back leg. There are also some more cartoony mini figures also sold under the I Love Ponies label; these are marked VTG 2013 (for Vivid Toy Group).
3″ Pose 1:
2.75″ Pose 2:
2.75″ Pose 3:
1.75″ rearing: