Penn Plax Action Skeleton No Toilet Aquarium Air Ornament

The sign should have probably said "Occupied", but either way the message is clear. While this ornament can't claim to add realism or authenticity to your aquarium it's certainly good for a few chuckles.

Action requires airline and air-pump, which makes our skeleton friend move from seated to a semi-standing position. Every college dorm room needs one of these in their aquarium.