Hi I've been working on a pulp city project for a while and I've come across a cheap shortcut for scratchbuilders in dollar stores,wooden craft boxes! they come in a variety of shapes the one Ive used most is 10cm x14cm and 6cm high with a 2cm high hinged lid, I remove the lid and flip it over to make a flat roofed building just glue matchsticks on the underside of the roofsection to prevent sliding they can be stacked up to three or four high windows can be cut in (carefully it's cheap wood) or painted on , most of mine have brickwork scratched on.So far I have 3, 3story townhouses 1 4storybuilding with groundlevel store 3 2story stores and 4 2story rowhouses. They are in various stages of completion I got ahead of myself trying out new ideas as fast as I got them. I also made a couple of arab/afghan mud buildings with a couple of the smaller boxes. SORRY I Don't have any pictures here,I'm still learning how to use my digatal camera and computor hopefully I'll get some pic.s to you soon. I think this is a great shortcut for scratchbuilding I got 15 buildings for around $40(cad) in materials I hope these boxes are available in other countries outside N. amer.