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.

Step 2: Breakdown the Keyboard

First, lets take the keyboard apart by removing all the screws on the back. You should be able to figure this one out :)

Now open it up. Keep the back part for now but you can discard the innards.

Pry the keys off with the flat head screwdriver.
Get all the keys you think you might use. don't forget numbers can be letters and such non-sense.

Remove the cable from the board.

You can now throw out the front and back of the board.

Step 3: Cable Time

We need some kind of rope/wire/string/cable to make the necklace.

I decided to use the wires inside the keyboards own cable.

First cut the connectors from the rest of the wire.

You'll need to strip all the crap from the smaller wires inside. Use the blade to help you get started.
First is the outer rubber(?) sheath.
Next is some foil like insulation.
Finally get one of the wires from the bunch.

Step 4: Assembly + Ideas

Now we can start on assembly.

First get some ideas.

Now once you have the keys you want, grab those pliers crush the back of the keys and twist to remove the little doodad connector thing.
This part is a pain. get as low as you can inside the key without breaking the keys itself.
You want the key to be able to sit flat on the table, this will make it so it never aggravates the wearer.

Once that's done. grab a Dremel with a drill bit (or a hand drill).
I started with the hand drill, but finished with the Dremel, its much faster and easier.

Just get a bit that is about the same size or bigger as the wire/string you're using.

When you drill try to be as consistent on both sides as possible. from key to key it doesn't matter cus that adds a bit of character. You'll have to drill through the left over pin thing inside the key, no worries.

Step 5: Finishing Up.

Thread the cable/string/wire/rope through each of the keys in the order you need, remember to check your spelling :)

When I was done I made to sliding knots and it was complete and adjustable.