How it works: Periscopes work by using mirrors to show you an image out of your direct line of sight. It allows you to to look past obstructions in your line of view, look around corners, or over walls.
Read on to find out how to make this super cool spying periscope!
Step 1: Supplies and tools.
1. Some sort of long narrow cardboardish box. You could use an orange juice box, or something with that basic shape. I used a Thin Mints box, because it was narrow, long, and sturdy.
2. 2 small mirrors. I found my two mirrors out of old make-up containers. They're easy to pry out of the top, but be careful, if the mirror breaks, it could cut you.
3. Duck tape.
4. A knife. I used my Leatherman, but an X-acto knife, or carpet cutter works too.
5. A marker.