For the Cowbells I start by sketching out the pieces I need. It only takes a minute but I dont have to sort through pieces to see what's already been cut. I use ugly or scarred leather for the welts since they won't be visible.
Then I cut a strap a little wider than the sheath pieces. That let's me cut comfortably without having to flip around a large side/slab of leather. You can see a fresh strap at the bottom, and the waste at the top of the photo. You can also see the stencil I use to cut them out.
Once I get everything cut, I'll match them up, and pencil them R and D on the inside in this case so I know which knife they are for.
View attachment 1476326