John in NM
Either off cuts or thong boot laces - never got the hang of lacing boots with the darn things, so I use them for other purposes (they often come with boots I buy).

If you do any full size knives, like for a belt knife or something, try cork rings for fishing rod handles. I made a fishing knife using a few rings and a Mora blade, came out really cool. Of course I've not gone fishing since (at least not anywhere you would need to gut a fish) so it lives in my desk drawer and cuts electrical tape and plastic optical fiber. Or anything else that needs cutting.

Still a neat handle though