Finally it’s available: 
TempHold : Hybrid Temporal Bone and Sheep Head Holder for cadaveric dissection learning anytime anywhere for constant surgical training
1. Hold both Human and Sheep head 
2. Inbuilt irrigation 
3. Instrument holding box
4. Light weight and easy to carry anywhere
5. Option of MS or SS material
6. Clamp lock
7. 4 strong SS screw to firmly grip the bone
8. Nice handle to hold and carry anywhere
9. Adjustable height with rotating screw

https://www.springermedizin.de/novel-concept-design-and-feasibility-test-of-hybrid-temporal-bon/19154536