This took a lot more time to think of than to execute.
One Dominix V2 + three black o-rings + four inches metallized vent tape + one 4 X 6 inch leather piece + a small amount of epoxy.

Was it worth it? I think so.
Advice if you want to do such a thing: Measure the area to be covered with leather, draw out on sheet paper, cut out and fit to hilt, if not good then remake using what you learn from each adjustment until good. Then use this paper template to help with cutting the leather. I made this with the leather edges butted up against each other, NOT overwrapping/overlapping. For this hilt that would have been too messy.
Cheers