Help needed on identifying parts and assemblies, yellow Technic pieces and teal lobster?
The right assembly is from set 8225 - Road Rally V from 1995.



The middle assembly is likely a MOC, there is no set that I can find which includes this build with the 2 1x4x2 Fence pieces with only 2 studs in either Dark Gray or Dark Bluish Gray.

The crab-like item on the left is from set 8268 - Scorpion Attack, also from 1995.