Glenn provides a piece of 1/4 ply with a notch on one end. You can glue a piece of 5/16 dowel on each side of the notch.
I used an old screwdriver, ground a radius on the end and that's what I used to tap the rebend strap down. After that I used the steel dowel that I tapered a little on one end to tap down through to make the correct size for the brass bushing.
And here we have a finished hinge. You can eather CA or solder the bushing in the strap.
Only ten more to go.
Del