If you can weld or have a mate that can weld?
Then one of those can be made very easily from the bottom of an old calorgas bottle.
If you want a custom made one then im willing to make one for you in return for a swap of some sort.
I have a reuse and recycle gas bottle fetish so if anyone would like anything else making from one please feel free to contact me via pm is best and im sure we can work somthing out.
Below is a wood burning stove i made from a small calor gas bottle after getting inspiration from ludlow survivors.
I am making a cauldron from one soon for my siter whos big into wicca and im also in the near future making a garden chimnea using a few differant types of gas bottles if anyones interested?