With the release of J.K. Rowling's The Cursed Child and the recent Harry Potter themed Wizarding contest on Instructables, there has never been a better time to create my first Harry Potter themed project. All I needed was an inspirational idea.
Fortunately my girlfriend came up with the wonderful suggestion of making the self-stirring cauldron. It was something that immediately captured my imagination and to my surprise there wasn't an Instructable for one, so I started work on it right away. The brief was simple, a cheap but effective cauldron with working stirring action and some visual effects. The result was a project that can be made for under £20 (around $25), and overall I'm pretty pleased with it.
For anyone who is not familiar with the Self-Stirring Cauldron, it appeared in Harry Potter and the Philosopher's Stone. It was invented by Gaspard Shingleton and was sold in cauldron shops to assist the owner in the stirring of his or her potions. But of course, you could always use a potion stirring charm. The cauldron also has a choice of three stirring actions, making it suitable for mixing almost any potion.
Full instructions to make this project are available on Instructables.