as far as i know cartoon shaders just draw an outline around a model. mabe some exist that change the texture in a cartoony style, i dont know i didnt use them to make the game as compatible with different hardware as possible.

you can download the contest demo now here: http://www.coniserver.net/coni_users/web_users/pirvu/au/demo/zips/utzwollewutz.zip

if you want to have the demo with the installer get it here:
http://www.ackbytes.de/upload/setuputz.exe

use rightclick to "save as.." and now have a lot of fun!