I like using the skeleton models to decorate and it would be really cool if you could rotate them like for example with skulls.

I looked into it and unfortunately it seems I can't rotate basic java models in two directions. And most of the skeleton models have already some tilt in it (like the head) (=x - direction), meaning I can't make them rotate in specific angles (= y- direction) (only the standard north, south, east, west stuff). When I have more time on the hand, I'll look into different methods to create more independent models