Cut a strip out of an inner tube. Ugly, but functional.
This of course is what the inventor, Jon Stram, Prince of Wales Island Alaska, as well as most Alaskan hunters and outfitters at the time, had been using. Recognizing the deficiencies of innertubes, Jon began cutting up old waders. He then realized that the keeper loop would then eliminate the throwaway function, and further added the gloves-on pulltab for instant release...and ScopeShields were born. It's just a matter of whether one wants to engage the process in its old beginnings, innertubes, or at its current culmination, ScopeShields.
