Ukulele straps should be fun and comfortable. I love these cotton belts hand woven in Guadamala and sold on the street in Mexico and other south american countries. If you have one, just make a simple leather piece for either end to attach to your ukulele. fold and stitch the belt together to get the proper length and you have an inexpensive and very practical strap. I recently found a steady source for the belts. If you want one contact me.
Meanwhile, back in the workshop I put the bindings on the three tenors I am building. It begins by cleaning up the binding slots with a little file to be sure the bindings will fit well.
then the pre-bent bindings are carefully fitted, marked and cut to fit, glued and held into the slots or groove with special strong tape. The clamp is to be sure there won't be a gap at the waist.
After a few hours all the binding is attached, top and bottom, and now we must wait a couple of hours to be sure the glue has set. After dinner I will take the tape off and see how things look.
And things look great. Excellent fit, These will look good after some delicate work with plane, scraper and sanding block.
Much of the secret to getting a good fit is in how well the binding was bent on the hot pipe. If the bend was extremely close to the shape of the instrument, the binding goes on without a problem. I got lucky on my binder bends this time. Made the project pretty easy.