it's an intricate process.
nah really it's easy. water. lots of water. you take trash bags and fill them with however many gallons of water you need. 1 gallon of water = just over 8lbs. tie off and re-wrap the bag if you can otherwise use another trash bag for protection. put the water bag in a shirt that doesn't stretch, something like a doctor or nurses scrub shirt and tie it off at the base. then take a broom handle and run it through the sleeves. presto, you have a curling bar. now that is for the really heavy bags, like hundred pounders. to make lighter water bags put them in some sort of hand bag in my case we used commissary bags with a t-shirt for a handle and you have your one arm curls and reverse curls (or whatever that exercise is where you lift weights behind your back) or whatever exercise you can dream up. we had a lot of time on our hands. we dreamed up quite a few of 'em.
