I wouldn't try this either!! When I was in high school (long time ago) we had to sew the patches on our school jackets. One teacher recommended going to a shoe repair shop. Some kids took that route, it worked perfect for them. I had a Grandma that too could sew thru anything, but she did it by hand. I've never tried sewing leather on a machine. I'd vote for hiring someone to do it for ya!! Good Luck