My classmate, Erik, asked me the other day to draw a couple of hands holding a "D", as a header for his photoblog (which is nowhere near daily, but the photos are lovely)
We took a couple of pictures with us holding a paper cutout and I started to draw with them as reference. I think it turned out a bit Escher-esque ("drawing hands") even though there is no loop or illusion. Take a look here for more Escher.
Visit daily to see the final result (and, of course, the great photos..)
And, if you want to see these pics larger, do that here and here.