We do this whenever we are together. The idea is that one person draws a panel then the person next to him draws the next and so on until we have a complete story on one page. The comics always end up being bizarre and ridiculous and we have a great time making them :)
This week I tried to give my brush pen a good go. I was pretty happy with this drawing:
Check out the comic here. The rest of the comics are on that website too, you just need to click the back and forward buttons.