Begin wrapping garland around the hangers. As it looks more horse-like, build up ears. If you have another texture of garland, weave it along the “neck” to become a mane. As you can see in one photo, I used a rose garland as the mane for one. I’ve also used poinsettia garlands. If you’re hanging it outside, it will get weathered and fade, so recycling pieces that don’t look like they did new works just fine.
Add (or better yet, recycle) some balls, pine cones, etc.