Have you ever wanted a sander,but is too expensive??
Now you can make one much more cheap.
By hacking you can make one under 10$.
Behold the ULTIMATE SANDER!!!!!!!!!!!!!!!
For POCKET SIZED don't see steps 4 &5.
Please vote for me in the various contests.

Step 1: Parts

Parts-
1. Anything that reads CD/DVD
2. Battery holders
3. Batteries
4. CD
5. Cardboard Box
6. Cardboard
Tools
1. Sissor
2. X acto knife
3. Soldering gun
4. Screwdrivers
5.Gorilla Glue
6. Gorilla tape

Step 2: Hack

Hack the CD/DVD head

Step 3: Hacking Again

Remove the optical head of the CD drive.The optical head is the part in the middle of the hacked CD drive.Identifiable features-lens,moves on a worm gear,connected to a secondary smaller motor.

Step 4: Battery Pack

First strengthen the edges of the box to make it tough.
Also add gorilla tape.
Now Solder the battery holders together.
Then solder the switch.
Then make 2 large wires extend out.

Step 5: Connections

Connect the CD head motor to the battery pack .

Step 6: Cardboard

Cut cardboard strip the size of the space in the optical head and attach.

Step 7: Sand Bit

Cut the CD such that only the white optical part does not get damaged. Then cut the sand paper such that it fits on cut CD strip. Then glue together the cut CD & Sandpaper cutout.

Step 8: Let It SAND!!!

Now to sand attach the sand bit with the sandpaper side on front.

Step 9: Mod

If wanted you can attach a small battery holder on the back & make it portable, because you would use less battery power i would advise to change the motor.