Looking for Greebles

[Janne Halla]

You arrive on an island that seems quite a popular stop. There are a lot of people awing and uwuing, and you soon see why.

The island is full of cats. It reminds you of the Aoshima cat island in Japan. Those that aren't being petted at the moment seem to be staring at random spots, completely still. They're focused on their spots, and from time to time, one pounces forward, looking like it's trying to catch something.

There's a big, beautiful wooden sign in the entrance area, with calligraphy lettering.

'Cats are okay, just looking for greebles.'

'Greebles, what's that?' You think to yourself, and as if by magic, a pamphlet appears before you. You just about manage to catch it before it drifts to the ground.

Greebles are imaginary inter-dimensional creatures that cats commonly perceive and react to despite humans' inability to observe them. You know when cats see something that's not there? That's a greeble.

There is a big grey square under the words, with an embossed, gold question mark. It looks like no one has yet seen a greeble.

Task:
What do you think greebles look like? Depict one through any art medium, but please create it within HOL rules.

Alternatively, describe what you think greebles look like in at least 100 words.

Post your greebles below by September 30th at 11:59 PM HOL time and you'll get 20 beans.