There's an interactive scribbling website recommended by Jess (who listens to a lot of Portishead and George Michael) which is just hours of fun fun fun FUN! And after this week of fuckin annual reports and record covers, I could do with some fun. You start off with your own sketch in red, then it does a scribble version of your drawing. You can keep adding on and it keeps scribbling!
It gets messy.