Step 3: Cut a new strap
I cut a new strap from an old belt I no longer use. I slit the belt to get the same width as the original strap from the old handle, and removed an outer lamination from the belt. This outer lamination was some sort of padding to give cushion to the belt and was not needed. I simply peeled it off. What was left was made of heavy leather with a reinforcing fabric laminated to it. This should be very strong.