I am planning to make a web interface which would show whether a person is busy or not. Basic visualiztion would be traffic lights(Green-when free, Red -when busy). I am a student and it is for my department. We have a big display in the common area and if the design is cool it would be displayed there everytime. It should be fun so that people dont get bored seeing the same thing all the time. There are around 20 people on the floor.

I searched for some cool visualization apis such as goolge charts or google gauge but was not able to get anything which would be fun. Can you please suggest any cool idea which would suit the purpose. It would be nice if there is an existing javascript library that does some cool visualization. If the api doesnt exist then maybe i can make it using photoshop and then adapt it in code.

Please help me out here.