Reuse Your Old Hard Drive Disks
If you have old hard drive disks lying around then you should use them to make this long spinning top!
Get the Parts
You need:
A hard drive disk (more than one is good for longer spin time)
A metal bar such as in an erector set (you can use a screw or nail too just not on a nice floor) ;)
Last you need a bottle cap with a hole in the center
A drill to make the whole in the cap
And last but not least, a hot glue gun
Assemble
All you have to do now is to glue the bar in the cap, and then the cap to the disk(s). This vid will show you how to use a string to spin it and how well it spins.