Sam and Max is fantastically awesome. This was done as speedpainting, as well, in under 3 hours.
Acrylics on two stretched canvases.
Want to see what Sam and Max is all about? Take a look. Sam and Max is a comedy franchise- it started as comics in the 1980's, then there was a video game in the mid '90's, a TV show in 1997, and more games and comics from 2005-2010. The link is to one of their games that the game company Telltale is giving away for free.