Keyboard Key Necklace/Choker

I'm a nerd. So I decided to make a nerd present for my girl.
So I made this Keyboard key necklace/choker.

This is pretty easy and cheap. If you already have a spare keyboard this is pretty much free.

Step 1: Materials; thing's you'll need

Keyboard - Typing thing you use everyday.
Philips Screwdriver - Made to insert and remove screws into things.
Flat Screwdriver - Same as above with a different shape.
Dremel or Hand Drill - Makes holes in stuff.
Blade - Cuts things.

I didn't add costs because you should probably already have all this stuff. If you don't have a spare keyboard you can get one at Walmart for $5.