We’ve covered some other innovate uses for a cdrom drive, but this one surely takes the cake! This would be a great way to teach young children about re-purposing obsolete technology. If you want to try it for yourself, here is the script (written for a Linux machine) that is used to keep opening and closing the door:

#!/bin/sh
while [ 1 = 1 ]
do
#eject cdrom
eject

#pull cdrom tray back in
eject -t
done

[via boingboing]