LarsFosdal, How to watch an eclipse without risking your eyesight.
All you need is something with a little hole in it, and a surface to watch the shadow on :)
Photos from a partial eclipse over Oslo, August 1st, 2008.
A Norwegian 1 Krone coin with a center hole.
Partially eclipsed sun shining through small holes in a window blind and onto a desktop, and creating a crescent shaped light spot. (Oslo, Aug 1st, 2008)
Capturing a partially eclipsed sun shining through the hole in a Norwegian 1 Krone coin (Oslo, Aug 1st, 2008)