I think such toys can be great enrichment in zoos. Imagine lions, tigers, cheetahs, wolves, hunting dogs or other carnivores chasing radio-controlled car or drone. I thought about it because several good documentaries had radio controlled cars and drones sent to mingle with wild animals (lions, tigers, elephants, bears etc) to film incredible pictures inside the herd. It would be great attraction for visitors, which cannot normally see carnivores hunting. And great photo opportunity to promote a zoo. Staff could even make public operate such a toy as a part of feeding presentation. For the big carnivores, it would probably require fitting some tin or hard plastic cover to prevent animals tearing the pieces off, as it was done by cameramen in the wild. If anybody is interested in films, names are: Tiger - spy in the jungle, Pride, Wildebeest - spy in the herd, Elephant journey, Bears - spy in the den. All seem from BBC and might have different names in other channels.