Partial Solar Eclipse

If you want to look at it safely, you can make a simple camera obscura by making a small round hole (punching with a safety pin is what I did) in a piece of paper (a business card would work well), and holding that card between the sun and a piece of white paper or cardboard so an image of the sun appears on the paper.

http://en.wikipedia.org/wiki/Camera_obscura

Don't look at the sun with your naked eye or just with sunglasses, or you might have a black spot on your retina for the rest of your life.