The Harry Potter Cauldron Mug is quite possibly the coolest mug in existence. Not only can you fill it with almost half a litre of your favourite bevvy, but you could use it for your spells - because you go to Hogwarts, right? Usually around $25, you can grab it on sale at Myer for $17.46.
This spectacular mug is definitely going to be the envy of the office or house, and if it were mine (which it shall be), I wouldn't let anyone touch it!
It's dishwasher and microwave safe (great for heating up your veggie soup for lunch), and it has a handy lid for keeping your potions contained.
It's a decent size, this one, measuring around 11 centimetres in each direction, and holding 473 millilitres.
Want it, need it, must have it.
There are quite a few Potter-themed mugs around, but this is a hands-down fave. Stock looks to be quite limited for Click & Collect, but you can order with delivery.
Standard postage is $7.95 at Myer.
You can also find this mug at Yellow Octopus for $24.99 with postage of $7.99.