Strops can be made from a range of materials and are extremely useful for touching up the edge on blades of various sorts - everything from chisels and planes to straight razors. For some hints on the construction and use of strops, check out these videos:

Get a Sharp Edge on Knives, Chisels, and Planes with a Homemade Strop by

Making a homemade leather strop by TheDeputydawg24's channel

Homemade Power Strop by Stillman's Family - Work and Play

Quick DIY Strop and CBN Emulsion by Dean O

Homemade Balsa Wood Strop by Caffeine Junkie

Homemade leather strops, and BRKT Sharpening Compound by escozez