Question: How can I punch holes in a leather strap?
Option 0: Using a sharp awl place it on  the leather where you want to punch the hole with the leather sitting on a table with a scrap piece of leather underneath it then push the awl until it punctures the leather and comes out on the other side.
Option 1: Using a blunt awl place it on  the leather where you want to punch the hole with the leather sitting on a table with a scrap piece of leather underneath it then push the awl until it punctures the leather and comes out on the other side.
Answer: 0