In the past few years, we have covered plasma lamps of all sizes and shapes. This LumiSource Mushroom Electra Lamp is also worth a look. It is a cute plasma lamp that reacts to your touch. You can also use it for science experiments, such as interacting with gaseous elements.
You can install and remove the mushroom lamp with a simple twist. The above video shows the LumiSource Mushroom Electra in action.