I just ordered two different ones from amazon and they must have had five pages or more of them. Try some different termination like "rifle cheek rest".
You can easily make them also. I cut up old neoprene waders and glue pieces to the comb with contact cement, or just tape them in place and cover with an Uncle Mikes elastic shell holder, you can also use multiple làyers of corrugated cardboard and cover with a elastic shell holder.