To really drive home the spooky aesthetic, you could place the cauldron on a bed of dry ice and add lights to make it look like a frightening bubbling potion. Even better than the vibes ...

We start by cutting out rounded shapes from cardboard to make the shape of our cauldron. You will need about ten pieces of ...

Make a SPOOKtacular bubbling cauldron at home powered by the magic ... this will make the potion look super cool and spooky, but not essential for the science. Give it a good stir.