Wicke Ddewit Chhe's magic potion:

Rat's hair,
Oil of a bear,
A feather of bird type Magra,
Hippo's skin,
Bird of tin,
And honey from bee type Tracka,
Add a cup of brass;
Has to be a mass,
Then mix with a silver spoon,
Add ghostly gas,
Ears of an ass,
And a picture of the full moon.
Finally, mix, and say BOO,
to the mixture of stew, and it will work.