Few days ago 
I thought it would be fun (especially since he even lent me his colored pencils). Now, I haven't been coloring since art classes in school so I was little nervous at start. It didn't help that zneeke was sitting next to me and looking over my shoulder what I'm doing. (Also now I know how he usually feels when it's other way around :P). He did give me couple of tips how to do some things (those glasses for example).
In the end it was fun and I might borrow his pencils again :)
Here is how my version of monster racer looks like: