I did this image for a customer, who wanted to have some construction cones replacing the main page while he was rethinking the whole site. At first I tried to find a free image on the web, but the ones that I liked had not a clear license, then I thought that I will expend less time doing it on POV-Ray with some basic CSG.
It’s really a very simple scene, but I’m publishing it to help anyone searching out for a free “under construction” image… here you have it: use the image (or the source at your own risk), for any purpose you may need it for.