❶ RobSmithDev has created a 'Crazy Disco Disk Cleaning Machine' using Arduino control boards and an old speaker housing, designed to clean floppy disks efficiently. ❷ The machine uses mechanical arms to move the disks to cleaning pads with isopropyl alcohol, followed by a drying cycle. ❸ Despite its flashy design, the machine is effective and has been tested on various floppy disks, including those with invisible mold.