Make Astronaut heads & glasses buttons renderable in real-time

[ghost]

In the Appearance menu:

I think it would be nice to place here real-time renderable buttons instead of making pre-rendered textures of the Astronauts heads and glasses (which can be replaced by other models in the future and that force us to make another pre-renders for that buttons).

In the future we could add here some turntable or other random animations to make it more up-to-today's standards.