At the Los Angeles Pen Show Feb 2011, a monster pen traded hands, a giant Waterman #20 in mottled hard rubber, the first of this sort I've seen. Its current owner let me shoot a video. I also took some stills, but without my photo lab with me, they are a bit limited. I will post those images next couple days. Here is the video.
(if you are getting "error: try later") go to the settings box at bottom of video, where shows '360p' and switch to 480p. Seems to solve problem). This appears after you try to play the video.
http://www.youtube.com/watch?v=wlTCnaV4EKU
regards
David