Making a stitching pony. One of the basic tools I think leather workers should have 

Building a stitching pony. I feel the addition of the cam lever clamps will make this an easier tool to use than many of the stitching clamps I have seen for sale.
I am always working on building something and try to average a RU-vid video once a week. Most often leather work, but I have also posted videos on black smithing, knife making, casting, and even how I make soap. Be sure to Subscribe if you are interested in any of these topics, or just making things in general.
Useful leather work tools and supplies (Amazon affiliate links)
Perma-lok needle for braiding and lacing: amzn.to/3q2Lfgi
I also use a lacing fid: amzn.to/39fK9XU
The tool I use to cut lace: amzn.to/35sWQxc
Hand stitching needles I use: amzn.to/39ivStf
A nice set of pricking irons for punching stitching holes: amzn.to/35snEhj
Edge beveler: amzn.to/3bliXtr
Gum tragacanth to burnish edges: amzn.to/39a62ri
Round knife I used before I made my own: amzn.to/39iw7o9
Wing divider: amzn.to/3nt77jd
Rawhide mallet: amzn.to/2MSCkjr
Strap cutter: amzn.to/3q6aluU
Barge contact cement: amzn.to/35Hylgb
A more respiratory friendly glue: amzn.to/3bpsJuv
Basting tape: amzn.to/39kVFRw
Books and patterns I use (Amazon Affiliate links)
How to make holsters by Al Stohlman amzn.to/3putSFr
Holster and gunbelt patterns amzn.to/3ovqj0m
Pancake holster pattern by Slickbald amzn.to/3ouWA7B
Leather braiding by Bruce Grant amzn.to/3oxGU4l