An easy pouch is the charm pouch which hangs round your neck and can be enlarged but uses a lot of leather to make a decent sized pouch. This is a circle of light weight/supple leather with an even number of holes (8 to 16 for the charm pouch, and 12 to 24 for the larger version) punched about a quarter of an inch from the edge evenly all the way round. Use a long enough leather lace/thong to make the drawstring and a loop that will go over your head when the two ends are tied together.