Although I would dare say this is hardly an iconic look -- I'm sure if you asked 100 folks, less than 10% would be able to tell you what his shirt looked like.
Remember, if you just use a sharpie, the lines will likely not be thick enough to read from the audience. You'd have to make those lines thicker than what it would actually be.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.