Boring Lectures? Try This

I'm sure you got a pen. Find a rubbr band somewhere. I mean, since you are bored, why not?

Follow the picture and seperate the pen into individual pieces. Make a hole in the middle of the trunk.

Insert the tip of the pen in the middle and bend it to an angle.

Place the rubber band onto it. Done.

Hey, I know the class is boring but please do not shoot your lecturer or professor. ^__^