How To Shrink Yourself With A Potion

First pour in about 0.5/8 of a litre of fresh water, this will act as then liquidous base for your potion.

Then break a dandy snap in half and drizzle in the nectar.

The add some dundruck, you'll only need half, so cut it with a knife and drop it into your cauldron.

Finally, drop in some cat's hair and give the potion a good stir before serving.

Drink the potion and with in seconds you should shrink down smaller than Tom Cruise. Once you're tiny, there's a whole world to explore.