If you can't find proper viewing glasses to view the total solar eclipse on April 8, you can make a pinhole viewing camera.

Why it matters: Glasses may be hard to find.

How it works: A pinhole camera projects the eclipse onto a small piece of card stock.

Our thought bubble: Bob Gee, Axios' Texas bureau chief, made a pinhole camera during a previous eclipse: "We made pinhole cameras using cereal boxes. It was a fun activity for the kids and they worked!"

Threat level: Staring straight at the Sun without proper glasses could damage your vision.

• A list of reputable manufacturers and authorized vendors can be found here.