Thx!
The main premise is the "anything can be a cog if you are insane enough"
For now this is just basically the fact the any object can be spinning if placed next to one that's already spinning. + Most of the objects are made out of materials that can interact.
At first I've tried RigidBodies where the shape and other stuff would mean more but it turned into some uncontrollable chaos - too much for the game.
On the other hand it would be still great to incorporate some + extra mechanics and materials, but for now I'm waiting for feedbacks and gonna play some other participant's games :D