RE: Need to quiet down my DL 50
I have tried to use aerosols and pop (beer) cans, but found they did not last all that long. The thin walls also propagate a lot of noise.
Butane or propane tanks are much better suited, and so are oil filter housings! Any garage will have a collection in their dustbins. There is a weight penalty, but that will be offset by the results in sound attenuation and power gain.