This question has options. How would someone go about accomplishing this goal?
To join the leather pieces using a leather string.

Pick from:
* Lay the leather pieces with holes aligned. Thread the leather through the holes in the leather string and pull tight. Repeat until all the holes have been joined by the string.
* Lay the leather pieces with holes aligned. Thread the leather string through the holes in the leather pieces and pull tight. Repeat until all the holes have been joined by the string.
Lay the leather pieces with holes aligned. Thread the leather string through the holes in the leather pieces and pull tight. Repeat until all the holes have been joined by the string.