Here's a little building I've been working on made from a couple of HO scale sheds. It's going to represent a small colonial workshop, maybe a bot repair shop.
The brown shed is by Peco and the paler is a kit from Wills. I cut a larger opening in the Peco shed with a dremel and made an open roller shutter to put above this. On the inside a workbench was added for a bit of detailing.