Make sure you have all of your materials. Test your battery. Place the long leg of the LED against the + side of the battery and squeeze. When your LED lights up, you know it works! Place a strip of copper tape on each side of the craft stick. Place tape so it touches the top. Tape the LED to the top of the craft stick. Draw a + sign on the side with the longer leg. Place the coin battery with the + side down on the side where you wrote the + sign. Carefully tape the battery down at the top, leaving room for the binder clip to touch Clip the binder clip to the bottom of the craft stick. Flip the ends up to turn on the light! Having trouble? Try taking the tape off the battery. Still not working? Try flipping the battery over to make sure the + side is in the right spot.