I had thought that putting this topic in the section marked 'Modelling musings & miscellany' would highlight this as a non serious post, just reflecting what I personally have been told at exhibitions. I make all my rolling stock from raw materials, with the exception of wheels, axleboxes and couplings. My locos are kit built, or modified Faller or other G scale, made to look more British.
I've attached a picture of one of my coaches, it needs a few more decals. The chassis is wood, the body was 2 cereal boxes. The cost? About £5 to £7.