It’s been my experience that I enjoy working with things more when I create them myself. And, for the sake of argument, we’ll say you feel the same way, too. Which is why I can only imaging that you would enjoy photography that much more if you crafted your own gear.
Instructables user bertwert has been looking for an excuse to break out the duct tape and incorporate it into photography in a manner that didn’t result in the Mounties being called. Using a toilet paper roll, some old glass, and a little measuring, he was able to construct a usable homemade camera lens that yielded some hauntingly beautiful results.