Yes, yes, even more David Bowie love here. The Thin White Sketchbook is an ongoing project started in 2007 by Sean T. Collins and features sketches of David Bowie from many different artists, musicians, directors, etc. A few samples are below and you should definitely check the rest of the sketches on Sean's Flickr page here.
by Jim Rugg
by Michel Gondry
by John Cuneo
by Tunde Adepbimpe of TV on the Radio
by Scott Campbell <-click the link for a very cool and funny Bowie print by him.