Blinky lights, in all shapes and sizes, are always a good thing to have. These micro LilyPad LEDs cover the tiny end of the size spectrum, and come in white, red, yellow, blue and green.
This is the LilyPad Arduino Simple Board. It's controlled by an ATmega328 with the Arduino bootloader. It has fewer pins than the LilyPad Arduino Main Board, a built in power supply socket, and an on/off switch.
Magnets. How do they work? We're going to guess magic. This particular set of magnets are pretty darn strong, are able to rotate freely, and conduct electricity. That's a pretty darn good kind of magic, if you ask me.
This is a large board for prototyping through hole components with the LilyPad system. This allows for quick and easy prototyping - all you have to do is cut the traces between holes you don't want connected!