Hi
Getting piece of leather is the way to go.
Cheapest and best if you glue the leather to a piece of wood.
A firm strop is better because you will be less likely to round the edge over as you would with a slack traditional strop.
Get a second piece of leather and do the same thing glue it down.
get some 300 grit sand paper and sand the surface shine off.
Treat one with some corx green abrasive paste. or white car polish. I use turtle wax polish. it is finer than the green.
Good luck.
You dont have to spend a ton of money to get a good SR shave.