LED technology is everywhere. It's cheap and easy to use for any project, and particularly fun for Halloween creations. If you're looking for a frightening costume accessory try the LED eyes. If you're thinking of something a bit less haunted, but still in the Halloween spirit, this LED hat is just the right fit.

This project is not a simple one, and you could probably find something similar (though not quite as cool) at the store, but if you have a good understanding of microcontrollers and a lot of time to spare before Halloween, give this a try. Here are the construction notes to help you build the LED creation.

If the project is a bit too complicated for you, start now and make a St. Patrick's day hat, or an accessory for next Halloween.