Mad Half Hour
Feline Collection – 2026 Edition
New 40ml Bottle
Every cat owner knows it.
That sudden burst of inexplicable energy. The sprint down the hallway. The sideways leap. The full-tilt chaos that lasts exactly thirty minutes before complete serenity returns.
Mad Half Hour was created to capture that moment.
On the page, it lays down a deep grape purple, saturated and indulgent. Rich like crushed berries, with enough density to hold its shape in finer nibs and deepen dramatically in broader ones.
But the real mischief lies in the shimmer.
Suspended throughout the ink is a dynamic multi-colour shimmer that flashes between blue and violet as the angle shifts. It moves with the light. It flickers unexpectedly, adding a playful, living quality to each stroke.
| Specification | Value |
|---|---|
| Volume | 40ml |
| Color | Deep grape purple with multi-colour shimmer |
| Shimmer Effect | Flashes between blue and violet with angle change |
| Compatibility | Works with standard fountain pen nibs |
FAQ
What makes the shimmer effect unique in Mad Half Hour ink?
The shimmer is composed of micro-particles suspended in the ink that shift between blue and violet depending on the angle of light, creating a dynamic, eye-catching effect on the page.
Is the ink suitable for all fountain pen nibs?
Yes, Mad Half Hour ink is formulated to work with standard fountain pen nibs and performs well across different line widths.
Does the ink dry quickly or fade over time?
The ink dries at a normal rate for fountain pen inks and does not fade when stored properly in a cool, dry place.
Alison Ellison –
The shimmer is absolutely mesmerizing. Every time I write, the ink shifts colors under the light. It’s like drawing with a living pigment. The deep purple base is rich and smooth, and it holds well on paper. I’ve used it with both fine and broad nibs and it performs consistently.
Tim Kerr –
This ink brings a playful energy to my journaling. The way the colors shift as I tilt the pen is unexpected and delightful. It’s perfect for creative writing or doodling. The 40ml size is generous and lasts a long time.
Matt Greene –
I love the feline theme and the vibrant purple hue. The shimmer effect is subtle but noticeable. It doesn’t overpower the writing, just adds a touch of magic. A little more flow might be ideal, but overall it’s a standout ink.
Brian Allan –
I’ve tried several inks from Van Dieman’s, and this one stands out. The color depth and shimmer combination is unique. It feels like a small piece of art in every stroke. Highly recommend for anyone who enjoys expressive writing.