Check out these very Metal guitar parts from Silver Luthier, yes they are all made from Sterling Silver and because of that they aren’t cheap but they look badass and apparently Silver has a great tone. The Skulls bridge will set you back $1200 but you are paying for a hefty chunk of solid Silver.
Also available is the Flame Bridge. “We designed this one so the flames tend to subtly curve downward towards the bridge, so if you are performing windmills with your guitar, you wont shred your hand. We also made sure to make this one large and distinctive, so whether you are playing at your local watering hole, or headlining in times square, you and your guitar will leave that lasting impression.”
And finally the Skull Grover style Tuning Pegs also made from solid Silver.
But that’s not all Silver Luthier also hand craft volume and tone knobs and toggle switches too so you can turn your guitar into a blinged up Metal machine. Check out http://silverluthier.com for more details.