Step 1: Tools and Materials
Step 2: Strap It on and Ring It In
Then cut a strap the length from the bottom of the neck of the flask down and up the back of the flask going past the top about an inch.
Fold down an inch of this longer strap and mark the edges of the fold. Take your leather punch and put notches at these marks (semi circles). Place your metal ring within this fold and secure the flap down with rivets.
Step 3: How Rivetting
Take the second strap and secure it further down the strap (with the ring) in the same fashion making sure the bottom edge of this strap would be flush with the bottom of the flask.
You then bring the rest of this up the front and secure with rivets.
There you have a flask holder.
Step 4: Get the Belt
Measure out a length of leather that will wrap around your belt adding an additional 3 inches.
Secure one end of the strap with the loop part of your sliding hook clasp with rivets to the body of the strap leaving a 3 inch tail.
Fold the tailing edge and mark the edges and put notches at these marks with the leather punch.
Place the hook part if the clasp at this tailing edge with rivets ( but don't secure it to the strap as you did the end with the loop). And there you have a belt strap for your flask holder.