The project I’ve been working on is a den for raccoons, foxes or groundhogs. As you can see in the videos below the chamber and the anti-chamber are repurposed composing bins. The passageways are aluminum tubing. I wanted to use codex but 6-inch Codex isn’t as easy to get as you might think. If at next year at there are no residents, I’ll probably swap out the tubing installed currently for something wider and hopefully more substantial. The camera is fully operational and can take stills or video. The trash bag is there to provide some rain protection even though the camera is fully sealed for outdoor use.
Here is a video of the den still open to view.
Here is the den, with posts designating the chambers, completely buried.