Buy a piece of heat shrink tubing in the color of your choice. Cut it overly wide, fit it and shrink it to a fit with a hair drier. Then use a razor blade to trim it to a perfect fit.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.