Soldering together tin plate, easily available cans, used to be a favourite method of construction in lots of boys magazines in the day.
I suspect modern tin plated “tins” are of a much thinner gauge than of old and will have ridges in them (for expansion during the cooking process) which makes then less suitable As a material source.
I had my collection of “O” gauge Hornby track replayed in bright tin a while ago. Transformed it completely, at 50p a section (I had about 120 bits done!).
Ashley