Spark Plug Gap Tool Necklace - Gift For An Auto Mechanic

Hey, I bet you know someone who loves to tinker with car engines.  What if you could make that wonderful person a gift that doubles as an auto mechanic's tool?

Such as this keychain.

That interesting-looking base is a mechanic's tool called a spark plug gap gauge.  I am told that it gauges spark plug gaps.  (Me, I have my doubts.  I think it's some kind of secret decoder disc.  Definitely espionage-related.  Shh.  Don't spread it around.)

Anyway, isn't it cool looking?  I would wear one myself...take a peek at this pretty, steampunk-esque necklace version:

But it's not about me!  It's about that mechanically inclined individual who is super hard to buy for.  You can make that person this awesome gift in 5 minutes or less - NO TOOLS NEEDED!  Just your two little hands.

Here's the simple DIY.

Add the spark plug tool onto a really big jump ring.  Then add a charm or two or three, like so:

Swivel the jump ring closed.  With a jump ring this large, you can just use your fingers (if you like, get an assist from a pair of jewelry pliers).

Now simply add it to a necklace or carabiner, and you have made your five minute spark plug gap gauge jewel!

Tip #1: Get these at any auto supply store - they are usually on the counter and cost a couple of bucks.

Tip #2: There's a reason for the extra-big jump ring, so don't try to go smaller.  It allows all the charms to swing free of the measuring tool when it's being used for...whatever it does.

Tip #3: For a key chain, avoid charms made of fragile materials, because it will likely live in a pocket with a mess of coins, keys, nuts and bolts.

For a manly necklace, string your focal on paracord, ball chain or suede.  Or try a strung necklace, as in this one made of leather and antiqued bone beads:

Okay, that's the big idea - have fun and please let me know if you figure out how the decoder function works.