most parts stores have them. I made one with a piece of 1/2 inch pvc pipe I just tapered the end so it was kinda sharp (like trying to sharpen a 1/2 inch hallow pencil) and cut a strip out of it so it would go over the line. when looking at it from the end it looked like this C <---
I have never even seen or heard of an autozone where I am. I have a Carquest like 100 meters from my drive way so it only takes like 2 minutes to walk there for me is fuggin handy sometimes I tell ya. Plus I have an account there (I drive a chevy truck 9 months of the year lol)