With the setup for the Tic-Tac flashlight, the voltage produced by the magnet alone may not be enough to power up the LED. It is possible that the only reason the LED lit up was due to the rechargable battery not being completely empty in the first place. This theoretical experiment attempts to improve on the circuit based on one of the comments made on "Shake it like a Tic-Tac!"
Image taken from Shake it like a Tic-Tac! page.
Step 1: Parts Needed
Magnet 20 mm in Diameter x 1
470u Electrolytics x 2
White LED x 1
Magnet Wire x 300 ft
Ballpen case or some hollow cylindrical tube that can fit the magnets and accommodate the coils of wire
Step 2: Making the Magnet Tube and Wire Coil Tubes
Step 3: Making the Wire Coils
This is perhaps the most boring and time-consuming part, but it is crucial, as this is how the electricity will be generated.
What is important to consider is that the coil should be larger than the diameter of the wire in order for the maximum voltage to be generated.