For Finding Pandora: The Complete Collection's first official book signing at Wrose Carnival, July 1st 2017, I've been making some lovely glass potion bottles. The book is a high fantasy, focusing on magical powers, good vs evil and Pandora's Box. Here is a really cheap and easy way to make these for your own event.
What you will need:
Mini glass bottles - available from craft stores/ online
Medium glass bottles - available from craft stores/ online