I put some of these dry transfer decals on my buildings. The eat sign went in the window of my cafe. Some of their other stuff might work, too.
http://woodlandscenics.woodlandscenics.com/show/Item/DT554/page/1
You could probably print something out on the printer and past it to the inside, probably take way longer.
How many buildings are you putting in the downtown?[/QUOTE
I saw the decals woodland has not much of a selection.As far as the number of buildings I think I can get 6 in maybe more I have 2 more to put together so once I get them on the layout I will have a better idea.I am also looking for another industry to put next to the lumber yard.