Yup. The Harp Sponge is a carnivore. Recently discovered by the Monterey Bay Aquarium Research Insiitute, they lie in wait at depths of some 3,500 metres (11,500 ft), looking all elegant and innocent. Each one has up to six vanes, which look like branches held up just above the ground. Upon these are numerous thin columns of sex and murder.
If you look closely at the columns, you can see that they're covered in tiny spikes and hooks. Just like the related Ping-pong Tree Sponge, these act like velcro to snag and trap small, drifting crustaceans. Next, a thin membrane smothers the body and the Harp Sponge can digest its catch.
So! Clearly the most sinful harp the world has ever seen. You don't want to be running your delicate fingers over those spiky strings. And who knows what kind of stuff you'd get all over your hands?