Here's a two minute doodle I did for your viewing pleasure. I found myself with no time to draw, due to life getting in the way, so I literally set the timer on my watch for two minutes and then put pen to paper. Roughly one and a half minutes later this piece was complete...which is impressive considering how realistic I drew their faces, and how much detail I put into drawing their hats.
(Tombow Fudenosuke Brush Pen on 28lb. laser paper)