Half-Life Barnacle

If you've never played HL 2, Barnacles are weird creatures that hang from the ceiling, they drop down what looks like a tongue and when something touches it they bring it up to their mouth to chew on it. If it's a barrel then they drop it back down, if it's a combine soldier then they get a nice snack. Here's a real one someone decided to make up. It's pretty spot on besides the tongue.

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