Our local Habitat for Humanity puts on an annual event where they get folks to restore discarded or worn down furniture and sell them at auction. My wife and I participated last year and this year I was asked to build 4 dog houses and then they were going to let local designers/decorators finish them out.
I figured it would be easy to find a good dog house plan, but I was wrong so I had to come up with my own designs. I did not want to use plywood becauase I wanted them to look good. So I used 1x4's and 1x6's. I built them all just a little bit different, but the same basic design on all 3. Since I am not very good with circular cuts, did not do any fancy 1/2 circle doorways!
There are "after" pictures on the Blog. Thanks for looking!