Toe of Frog

Shakespeare Challenge for April - Day #3 - The Wyrd Sisters - the evil witches in 'Macbeth'

Double, double toil and trouble;
Fire burn, and cauldron bubble.

Fillet of a fenny snake,
In the cauldron boil and bake;
Eye of newt, and toe of frog,
Wool of bat, and tongue of dog......