Oh, I have tried. I have several scattered around the house, with half a dozen pieces sketched. But I can't keep one up. It is just not the way my mind works or that I design.
Right now, I am figuring out a variation on this design
I tend to think over a piece for days or weeks, tweeking it in my mind, moving it around, figuring out how to fabricate it and how to finish it. By the time I sit down, I have everything sorted out in my mind. If I try to this process with pencil and paper, it doesn't flow.
Perhaps it would work if I could actually draw anything decently.