Yeah. That's the problem with pre-punched holes in that kind of leather. It seals up! Just ruminating on how I'd do this if I were to try it...I think I'd apply some cement to the leather, stretch and squeeze it together as I went around the frame, burnish the joint where the two pieces of leather join, with a plastic "bone folder", then run along the join with a stitching awl and needle and thread. Trim the excess with a very sharp knife, perhaps the hardest part! Again, not critiquing, just ruminating. Neat idea and project, Aidan.