Robert F. pointed us to these charts, via the Digital Design Blog. A larger version is found here. These look like scraps from an art class, exploring perspective and 3D.
These types of charts are quite prevalent in the web analytics area. We have a long way to go in terms of producing good visualization of such data.
For even more light entertainment, click here. (Warning: not for the easily offended, language purists, and mildly not safe for work). (This is via Pete S).