Release your inner mad scientist with the Alchemy ink range from Endless - especially as they've created a new one just for us (and you, obviously) - the Cult Pens Exclusive in Orange! 

The bottle, which holds a generous 60ml of ink, is shaped like a beaker with a rounded base, offering the perfect toy for fidgeting and procrastination. It does have a practical use though; the bottle tilts, allowing the ink to pool in one corner so you can fill up even when you're running low: a feature you just wouldn't get with a flat based bottle. 

It's supplied with a cork base. One side - for when you want to be sensible - has an indentation in it, allowing the bottle to sit upright and not wobble around uncontrollably. The other is for when you want to have a bit of fun. 

The ink itself is specially formulated to be gentle on nibs and is designed to preserve the more delicate components of your pen.