Don't be a mug, get a ... wait, did we already do that joke?
After a hard day's witching, you'll often find yourself needing a wee aperitif. In that case (or a number of more likely cases), you'll be wanting this generous-capacity mug.
The mug is 14.5cm tall, so if your shelves are 14cm apart, it won't fit unless you put it on its side. A 15cm-spaced shelf should be fine.
Poison. Not everyone's idea of a comforting mid-afternoon tipple, but each to their own.
The frightful skull that graces this mug is wearing a crown. Monarchs, historically, are one of the most at-risk groups when it comes to poisoning, so that makes sense.