I used one that had a small bottle of oil (you fill it yourself) and then attach the little bottle of oil to the contraption and heat up the bottle with a torch (a lighter will work, just not a well). It was around $50.00. And it comes in pretty colors. It is light weight and folds up into a pouch.

Rather disappointed to hear that 'volcano' did not incorporate using a bottle, in the volcano's, to keep it clean.

thanks for the info purplehugs.:rasta: pr