here is first Instructable to teach you how to do it, and use it in a lot of ideas know that is a kind of led throwie but you will not throw it, instead you put it in an exactly place to illuminate something, you can change the batteries and have a switch to turn it on or off and put in the base a magnet, velcro or double side tape to put it on everything. Hope you like my project
Led (5mm or 10mm), 2 Coin Batteries (CR2032), Acetate sheet (Mylar or PVC), Velcro,<
Magnet Sheet, Double Side Tape.
You can use white LEDs, RGB slow or fast LEDs, Flashing LEDs, etc.
Here is one tip, if you need a diffused LED, I melt wax of a candle and dip the led in the melted wax 2 or 3 times, so if I need to make it clear again just apply some hot to the led and wipe the wax with a towel paper.
don’t use resistor because for me the brighter the led the better the look, and because of the internal resistance of the batteries the LED wont burn, also I use two batteries to have 6 volts for the white and the RGB LEDs and have more lighted time, if someone prefer to use one battery just change the dimensions of the template
Visit Here for more.