1e. Cut out the slot with an X-Acto knife, using the ruler as a
guide to make the cuts clean and straight.
1f. Use scissors to cut out the large circle.
2. ATTACH THE DISK TO THE MOTOR
2a. Use an X-Acto knife to slice a round section from the cork,
2b. Hot-glue the flat side of the cork section to the center of the
strobe disk, using the small center circle you drew as a guide.
2c. Use a large sewing needle to pierce the center of the cork
through the disk. This will make a pathway for the motor shaft.
2d. Push the strobe disk and cork onto the motor shaft, with the
cork facing out. This should be a snug fit.