Lamarckdromia Crabs: these fluffy crabs make their own protective "hats" out of living sea sponges; after selecting a suitable sponge, the crab trims it down to the right size, drapes the tailored sponge across its carapace, and carries it around

[u/SixteenSeveredHands]

[u/ClairLestrange]

Reminds me of r/urchinswithhats