Make very, very tiny lighting anytime you want. Cut a piece off one corner of the Styrofoam tray, as the picture shows. You will have a long bent piece that looks a little like a hockey stick.
http://www.exploratorium.edu/science_explorer/sparker.html
Making a simple electric motor is an educational activity that may also be tried as school project or science project. With this project students can learn and demonstrate conversion of electrical energy to mechanical energy.
http://www.miniscience.com/projects/Magnet_Motor_kit/index.html
Making an electric generator is a good way of learning the principles of generators. It also is an exciting science project. As a display project, you just need to make it and demonstrate its structure. As an experimental project, you need to come up with questions about the factors that may affect the rate of production of electricity.
http://www.miniscience.com/projects/KITWG/index.html
The goal of this project is to build a sensor for measuring magnetic field strength and to use it for measuring the strength of different types of magnets.
http://sciencebuddies.org/science-fair-projects/project_ideas/Elec_p030.shtml?from=Home
This heat engine is very simple. We suspend a small piece of magnetic material at the end of a pendulum. A large magnet is placed near the pendulum, so that the small piece of material sticks to the large magnet.
http://sci-toys.com/scitoys/scitoys/magnets/magnets.html#curie_effect
Floating in mid-air between two metal plates, a tiny magnet bobs and spins in the wind from the viewer's breath. No batteries are used, no electromagnets, no supercooled superconducting materials, just some easy to obtain materials from local stores.
http://sci-toys.com/scitoys/scitoys/magnets/suspension.html
There are some materials that are more diamagnetic than bismuth. These include superconductors (which at this time require cryogenic temperatures to work), and similar materials that exhibit "giant diamagnetism" (also at very low temperatures).
http://sci-toys.com/scitoys/scitoys/magnets/pyrolytic_graphite.html
The three wooden blocks in the photo above are all about the same size and shape. The large ferrite (ceramic) magnet is resting on two "tea-light" candles (small candles in little cups). One candle is lit (the other is just there to hold up the other end of the magnet). The flame just grazes the near end of the magnet.
http://sci-toys.com/scitoys/scitoys/magnets/curie_engine/curie_engine.html
Using the safe high voltage power we get by placing a sheet of aluminum foil on the face of a television or computer CRT screen, it spins a styrofoam cup around at a respectable speed.
http://sci-toys.com/scitoys/scitoys/electro/electro5.html
The device is called a Van de Graaff generator. Science museums and research facilities have large versions that generate potentials in the hundreds of thousands of volts.
http://sci-toys.com/scitoys/scitoys/electro/electro6.html