Using Sharpie Markers to Draw a Two Sided Object

Today I setup a Sketchup file to produce a two sided Bart Simpson character for a Micro Surfer Dude I intend to build.  


I created a tutorial on the process used and posted it on youtube.


Part 1
http://www.youtube.com/watch?v=OQI9cRb3B8g


Part 2
http://www.youtube.com/watch?v=jreYuWBxaME