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Or you could use grip tape that they use for rackets.

https://www.amazon.com/Leather-Handle-Wrap/s?k=Leather+Handle+Wrap

https://www.amazon.com/TOURNA-TLG-T-Leather-Grip/dp/B00STUOJCS/ref=mp_s_a_1_4?dchild=1&keywords=Leather+Handle+Wrap&qid=1617389239&sr=8-4

It's the same stuff people use for axe handles and handlebars on bikes

Remove all electronics, sand the saber to give the surface tooth for the paint to hold on to, put protection over the holes so paint doesn't get inside ( I used rolled up toilet paper roll cardboard and rolled up pieces of paper for the screw holes), spray paint the entire saver also protecting the points where it screws together (I like electrical tape for the form fit), spray-painted with Rust-oleum Hammered flat black a light layer over the whole saber in pieces and let dry for balance 3 minutes before I start lightly wiping away. You want to hit only the raised areas so that it stays black in the crevices and you want to be very gentle with your touch so that it's still leaves paint on the saber. You can also use turpentine to push the paint around a bit if you use a thicker layer or paint thinner/acetone. The most important thing to remember is that the saber is going to look wrong for a good portion of the time until, suddenly, it just looks right. After the paint has dried and you have it the way you want it wait about an hour and then hit it with Crystal Clear flat protective coat spray paint. Once that's dried for about 2 hours I hit it again for a second coat of clear coat. Remember to apply those coats at a distance to make sure they go on clear (at least a foot away). I used this for the handle and locked down the ends with Loctite epoxy. The best measuring cut method I've found for spiral leather wraps is the one I mentioned in this post. MTFBWY