So, I can't find the example of the one I like the most. A GM had created pre-generated PC's, but instead of a character sheet game them a photoshopped picture of what is on their desk: miscellaneous objects, papers, books, etc. You could look at the contents of the desktop and figure out what kind of person it was. What was really clever was s/he had worked the stats into the texts of things like take-out restaurant menus or playbills from shows. It must have taken a ton of work, but was really effective.