When I was a kid I used to travel with the carnival and always saw the kitschy stuff they sold on the independent midway. One of the things I remember was a large wind chime made from what looked like one of those big helium tanks. I thought they were awesome! They had a deep rich tone that was almost like a buoy on the ocean.
When my Grandmother passed away for some reason my family kept her old oxygen tanks. Not those new aluminum ones the old iron ones. When I picked it up and moved it it hit something and gonged.... I remembered my days at the fair and decided to see if I could make one.
This is the result! It turned out awesome and the clapper is heavy enough that it doesn't whip around a lot which gives you a nice gentle ring on blustery nights.
Cast Iron or steel gas cylinder (I has an Oxygen tank, but, a co2 or helium tank would work also.)
5 feet of rope
Clapper (I used a 1 pound weight, but a wooden clapper can be made to fit for a softer tone.)
Various nuts for retainers
6" x 24" x 1/8" "Hobby Board" (That's what they called it at home depot.)
Primer, paint and clear coat
Metal cut-off saw or an angle grinder with a cutting blade
Drill with a 3/4" bit
Files (Bench grinder optional!)
Metal coat hanger or a long piece of baling wire