Metallica fans are a unique group of individuals (in a good way), and they know it. Show off your Metallica love with this stylish choker necklace. And if you like customizable jewelry, check out this.

…beer guitars? Neon beer sign, meet guitar. Guitar, meet neon beer sign. An undeniable classic is born!

Okay, so this is a little bit of a tangent perhaps, but I think an Ernie Ball clock does count as cool music merch. Perfect for the studio, the guitar store or anywhere strings are broken!