We all know that feeling of crippling boredom when, during class or some important meeting, our pen wanders the page creating meaningless scribbles and doodles. But sometimes, we manage to create something really impressive and cool with those doodles, like these...

We all know that feeling of crippling boredom when, during class or some important meeting, our pen wanders the page creating meaningless scribbles and doodles. But sometimes, we manage to create...