Hey not sure if this is of interest to anyone but these are fairly simple and cheap to build with a bit of know how and an expired bottle. (ozpig)
I've also seen an old copper water cylinder turned into a giant thermette as a cheap way to heat water for an outside bath but I don't have any pictures sorry, until I find an old cylinder at least.
Gravity is a harsh mistress. But this tiny ad is pretty easy to deal with: