Title photo by David Guillemet

I've only just discovered that this exists...

Orangutan crab (Achaeus japonicus)

.....it has relatively long arms, which are thickly covered with fine hairs, red or reddish brown in colour, and often laden with small bits of debris for further camouflage....

....frequently, but not always, found in association with the bubble coral wikipedia

Above photo by scubaluna

-They're found in the Indo-Pacific region, have a naturally shaggy pelt, and like to decorate themselves with debris, small plants, sedentary animals, shells and gravel to enhance their natural camouflage!

Above photo by Bruce Versteegh

-During the day like to hang out in Bubble Coral, which swells its bubble-like structures to maximise its intake of light....

Above photo by Niall Deiraniya

-At night the coral 'deflates' and the Orangutan crab wanders off in search of food

Above photo by Dennis Young

The last 2 photos made me piss myself laughing....it looks like a fuzzy little muppet!

Info from wikipedia and here