There are sites with suggestions on what to do when you're bored, but this one site has a list that is so silly, that it's worth singling it out. For example:
Push your eyes for interesting light show
(Amusement Potential: 1-5 minutes)
See a variety of blobs, stars and flashes. Try to make out things your subconscious is trying to send you a message? Can you control what you see by pressing different areas with different forces?
