I think notebook cover is good, especially over a stiff cover. Alone I’d worry more about the edges curling than tearing. Maybe if you folded over the edge and stitched it you would have a good soft-cover. I’d say, cut out an intricate shape and glue it to the front of a notebook, but when I used barge contact cement on my luggage tags the back side soaked up even the second coat quite a bit and I’m not trusting how well they’ll hold together.
I don’t know if a wallet would tear so much as just wear out quickly.
My tenant’s boyfriend does some leather work and he was at a show where people kept walking by with engraved leather patches on hats. He couldn’t figure out what was happening until I showed him this stuff. He was not sure if the patches were pre-made and sewn on before the show, or custom engraved and sewn on at the show.
@johnwills what do you think about engrave, cut and sew? Cheap canvas tote bags with an engraved patch sewn to the front?