Hello Lanimal, and a very warm welcome to the forum.
Catherine made some very useful suggestions, but you could also ask a veterinarian in your area? Or a veterinary hospital? It may not be a genuine bone skeleton, but made of resin. They might not be able to provide one for you ....I don't know....(maybe one that was a bit broken and only needed some super glue to fix?)...But they might know a scientific supply store where you could buy one. There would even be second hand ones maybe. Students who have qualified and are getting rid of old stuff?
An ad on a free ads board, maybe in a vet school? might also turn up something?
Catherine made some very useful suggestions, but you could also ask a veterinarian in your area? Or a veterinary hospital? It may not be a genuine bone skeleton, but made of resin. They might not be able to provide one for you ....I don't know....(maybe one that was a bit broken and only needed some super glue to fix?)...But they might know a scientific supply store where you could buy one. There would even be second hand ones maybe. Students who have qualified and are getting rid of old stuff?
An ad on a free ads board, maybe in a vet school? might also turn up something?