Old tires make a decent shoe tread. We made some open toe'd zapatas out of cut up old bias ply ties and scrap leather thong. they weren't the most comfortable, but they were far superior to wearing nothing. Japanese wooden sandals are even more basic; just don't plan on going miles a day in them. Sabot are okay but they are a bit tough to mfr. It's usually done with special wood gouges that scoop out the insides to fit. Mocassins are okay, and I happen to have enough saddle leather to make decent soles, but the suede soled variety won't last any longer nor be any better than a good pair of socks.