This is a fun way to recycle a combination lock. With very little effort and time we can easily create a unique typographic necklace made from the number tumblers found inside a combination lock.
Step 1: Get Hold of a Combination Lock
I found this lock at REI. Unfortunately I have forgotten my combination, lost the key, and failed to crack the combination.
Step 2: Purchase a Military Dog Tag Necklace
I found this inexpensive military dog tag necklace at the local army surplus store.
Step 3: Gather Tools
You will need a slotted head screwdriver and a hammer.
Step 4: Loosen the Gate
Begin by loosening the lock. Investigate your lock. Find the weakest point of the design. My particular lock has a flimsy gate near the top. After you locate the weak point insert the slotted head screwdriver and give it a couple medium strength taps with the hammer. No need to over do it.
Step 5: Split the Case
Finish dismantling the lock by splitting the side open. Tapping the gate in the previous step will open a small crack down the side of this particular lock. Insert your screwdriver into the crack and gently tap a couple times. Shouldn't require much force. Consider protecting the floor or doing this project outside. The screwdriver could easily scratch a wood floor or chip floor tile so be careful.
Step 6: Survey the Lock Elements
Inspect the lock elements. Locate the circular tumblers. Consider archiving the other parts for future projects. Be mindful of the very small parts inside your lock. This is especially true if you have pets or small children around.
Step 7: Thread the Tumblers Onto the Dog Tag Necklace
This is the easiest part. Simply thread the tumblers and you are finished.