I'll bet you have a cardboard box. That and a few common supplies will let you build a pinhole camera/viewer that you can use to see an eclipse or the Sun. Just follow the steps in the captions.

Instead of staring up at the sun, you'll see the eclipse projected onto a screen surface. An easy pinhole camera can be made using two pieces of stiff cardboard, some aluminum foil, tape ...

The safest way to observe an eclipse is indirectly by using a pinhole camera that you can make easily at home. If you must document one of these events, a simple, wide-angle snap should capture ...