Good times. The best part? Pendulums are affordable (you can even DIY one!) and easy to use once you get the swing of them—literally. A pendulum is a tool typically made of a small, weighted object ...

When I was a kid, I used to love turning to different props and methods that could give me a yes or no answer to a question (I’m very indecisive). Magic eight balls were my jam, and I always played ...