This week, I discovered Mystic Mountain Productions' small but growing line of paper buildings. You can find their products at RPGNow and Wargames Vault, which basically are the same companies. They also have a Facebook page. Right now, they have seven kits available.
Their Town Square Clock Tower is a FREE single-layer PDF useful for just about any setting. It looks nice and should be easy to build. Might as well give it a try for free!
Their latest model, the Merchant's Guild, really caught my imagination. I could see it housing one of my eccentric West Wind Victorian characters or a modern spy-fi game needing an interesting Tudor-inspired building. The multilayer PDF is $5. I've asked if it comes with a single-layer version so I don't have to print it on my stored inkjet printer. (I use a monochrome laser printer for all my daily printing.)