I know many folks picked up some large whole hides at the leather sale. If you’re looking for a good project, consider making a lightweight leather apron for woodshop/other projects. While I don’t think a single layer of the upholstery leather is beefy enough for a blacksmithing apron, it’d be fine for a general shop apron.
Consider using the leather suede side out for a different look.
Weaver Leather has a good tutorial video. It uses minimal hardware (4 D rings and 16 rivets) by utilizing ties instead of snaps or buckles.
The basic pattern looks like this:
These dimension should be adjusted as needed: full width is 2/3 your waist to allow coverage without binding at the back of the knees. Waist to knees is 18" (longer for fuller coverage. Waist to top is 16" (perhaps longer if you are barrel chested).
They also provide some dimensions for different types of pockets (Note that the pen and knife pocket widths in the 2nd pattern don’t match the sizes on the master apron pattern. I recommend the latter widths):