This is how it looks like now, so let's get to work!
I wrote on the picture in Hebrew because I did an instructable in Hebrew on a diffrent site...
Step 1: Sand the Skates
Use some kind of sand machine to polish the skates until they are smooth as a baby's butt.
Step 2: Painting
Paint your shelves with at least two layers. Wait until the paint is dry between layers.
Step 3: The Upper Side of the Shelves
Stick somthing that will keep your thing safe and unscratched (skates usually has sand paper on them).
Step 4: Mount
Find a good mount that you will be using to put the shelves on the wall.
Step 5: Mount Your New Shelves on the Wall
now that your all done you can mount your new shelves on the wall and start putting things on them :)
* The shelve is leveled but the mount is not orthogonal because of the skate's orientation
Step 6: The Final Step!
Enjoy your new shelves and don't forget to be awesome :)