Here is one NOT for the kids.  I wonder if Tim Allen would have bought one on his show "Home Improvement"...

Seriously these Hard Drive Destroyers are very popular and the demand is steadily increasing.  Business, government agencies and more have the need at times to destroy old hard drives.

Here is the best solution:
 

SPECIFICATIONS
Media Destroyed: All standard (1-inch, .65-inch, 1.65-inch) and laptop hard drives
Manual Operator Exertion:
- Typical Commercial Drives (1-inch) – Approx. 4 lbs. exertion
- Hardened (Heavy Shielded) (1-inch) – Approx. 12 lbs. exertion Power Supply (with motor option): 100 to 250 VAC, 50 or 60 Hz (specify voltage and frequency when ordering)
Operating Time (Manual): b Approximately 10 seconds or less per drive dependent on operator
Operating Time (Motor Operation): Approximately 11 seconds per drive
Destruction Method: Bends platter, damages heads, motor and circuit board
Physical Dimensions: 8" W (13" with handle) x 12" D x 23.5" H
Weight: Approximately 70 lbs., Shipping weight: approximately 100-110 lbs.
Maintenance: Occasional vacuuming of debris drawer and internal housing
Warranty 1 year (1-year extension available)
BOW Industries Cage Code: 53468
Patent: Patent Pending with U.S.P.T.O.