Skeleton horsemen on either or both of Home Depot's horse or pony. Opposing the dragons. They also sell bridles, saddles (if not out of stock).
As far as skeletons in cages, I have a couple. I made out of a sheet of clearance linoleum, circular sawed into strips. Painted black, looks like textured iron. Bound with PVC hoops, screws at junctures. Floor just cheap grey foam cut out of a 2x2 playroom square. Those are for trees. I could sell these things. Safe hung in trees as they weigh nothing. Unlike foam they hold their shape season after season. Nothing against foam, just harder to make look solid.
Ocean State Job Lot sold me a black iron circular tomato trellis (I guess, but it has a bell'ed top and a spike, which broke off) that spikes into the ground. Probably cost $30 bucks and looks awesome.