Step 1: What you need.
Tape (Duct tape works best) Shown here is electrical tape.
A small motor. Mine came from one of those things where you put lip gloss on it, turn it on, and drop coloring on the lip gloss.
Batteries. For the motor and the LEDs. I used two button cell batteries for each LED and taped them around the sides so they would stay together.
Two LEDs. You can use more but don't use more batteries because it will make it too heavy.
(Not pictured) Cardboard for the fan "blades"