Here are 2 items. You can create the Leonardo da Vinci cryptext.
You can open the engine and rotate de rings.
It has its material composed of 5 textures : Albedo, Metallic, Normal map, Heigh and Occlusion.
Textures = 1K and 4K
Poly count
- Tube : Tris = 3168
- Top : Tris = 4723
- Cap : Tri s= 1111
- Ring : Tris = 2592