I'm an Australian, so I know all about Billy cans (and also stealing sheep).
Mine is a beat up old thing with a suspect looking piece o' wire for a handle.
It mighta once had a lid.
I don't believe in these fancy russian-doll cookware systems with magic spoons & built in steamers.
It's great for cooking up some soup or wee pot of tea.
For the most part I cook meat & potatoes - neither of which require apparatus, so my needs are few