Other: #76073 Coinflip divination

No for most people. Divination is an advanced thing.

For yes and no questions you can,their is even a yin yang divination tool method in asian Culture, among the i-ching and others, so for yes and no, go for it and if you want to for other questions learn the i-ching

Any prop you use for Divination can only be as good as your own personal skills. I wouldn't bother with it until one is more advanced.