Go to the fabric department of your local Wal Mart or fabric store, buy yourself a couple of yards of 100% cotton flannel (make sure to read the fiber content label). Wash it in hot water, dry on a hot setting. This will fluff up the fabric, and tighten the weave. Detergent is not necessary.
After drying, cut the fabric into 1½" (more or less, exact dimensions don't really matter, but this is handy) squares. Put these into a zip lock bag. These are your cleaning patches. Add water as needed to each individual patch, and run it up and down the barrel after firing each shot. Simple.
As far as tools go, you'll need
- a proper fitting jag
- a good fitting screwdriver for the **** jaw screw
- a piece of 1/16" wire for a vent pick (handy, a paper clip, safety pin, or piece of broken guitar string will do)
- an extra flint, or two
- a ball screw (to extract the ball after you've discovered that you forgot to load powder)
- an adjustable powder measure
- a few strips of patching, or cut patches (Whole threads have been posted about lubes. Check those out.)
- a sharp knife if you decide to cut the shooting patches on the muzzle
- a short starter (optional)
- a priming horn, or flask (optional)
Welcome to the wonderful world of flint locks!