Two 3.5” floppy disks, paper, scissors, ruler, hole punch, rubber band
Cut the paper into 30-50 sheets of 3.5 inch squares.
If the lock is covering one of the two holes on the end of the disk, open it up. Line the disk up with the paper and mark where the holes should go. Punch holes through the paper.
Line up the paper so the holes are even with both disks. Cut a rubber band and thread it all the way through both holes. Tie the rubber band back together in the back.