It’s rare but some solar eclipses cause stunning Instagram-worthy visual effects such as a devil’s horns, a smile or diamond ring sparkling in the sky ...

This month's solar eclipse will happen at sunrise, and will take on the appearance of "devil's horns" or a Cheshire Cat grin.

Using your horn to say g'day, tell someone you're here or to tell them to just 'get off the road' is actually against the law. Victoria Police posed the question "Can you beep your horn to call out to ...