I've still got hopes to get some bees this spring, so I'm making more bee boxes, in the Warre, or top-bar style. I've started doing some simple notches for the bars rather than try and use small nails to hold them in place. (they need to be a specific distance from each other)
So, every so often when I find a handful of boards that will work, I pop together another box. I'm going to have to build another roof structure soon.