As I'm still new to the addictions of SRP not one specific All the above, is suggest as others have mentioned making one. It's pretty damn cheap to get scrap smooth leather 3" x whatever length, find a piece of wood that's
3" wide and some elmers glue and your done. It does a few things, one you made it, its cheap so the wife is fine with it. And two if you ruin it with nicks its ok, good practice in anticipation for further purchase of a great strop.I bought a beautiful hanging strop that's still in the bag as I love my paddles and am getting the full swing of it before I break her out. And to be honest I really enjoyed building my paddle strop, the simple wood working was fun. Just my opinion.
Respectfully
Christian