A short article I wrote on a DIY cheek riser, for proper sight alignment.
You can also use foam pipe insulation and pool noodle foam. I have found pool noodles in different thicknesses to help eliminate using multiple layers of thinner insulation which can start to shift after awhile.
The moleskin is a great idea that I am going to steal!! >:D
Pipe insulation and pool noodle work well, also anti-fatigue mats and mouse pads. You're welcome to steal the moleskin idea. Anything that helps with comfort on the rifle is welcome.