I keep meaning to do a post about the way I do the “Y” shaped straps on things. Rather than cutting the finished shape and wasting a big triangular piece of leather, I cut a strap twice the finished width, split it for the desired length and then wet the leather and stretch it to shape.
The approximate pattern on the hide. Sorry, I had meant to take a photo of the leather marked up but got carried away…
Wet at least the intersection, stretch the arms to the correct angle and work any bulges or wrinkles out with your thumbs. Let it dry.
Trim and skive to taste. I’ll be using these later.