Long ago, stories were told in the ancient world of Hyrule about a Golden Land, with unknown powers, controlled by an omnipotent and omniscient golden power; known as the Triforce.
This omnipotent holy relic was created by the three goddesses of Hyrule; Din, Farore and Nayru. Imbued with their divine essences, it is the ultimate manifestation of power, wisdom and courage in Hyrule.
It is influenced by the heart of the one who touches it, whether good or evil, and possesses the ability to grant that person’s deepest desires.
It consists of three distinct entities represented by the three smaller triangles, each of which is also referred to as a Triforce when considered individually. Counter-clockwise from the top, these are the Triforce of Power, the Triforce of Wisdom, and the Triforce of Courage.
.. and here is the Triforce, held aloft by the great hero; Link!

so, now that you’ve got the background story, my mate Robert asked me to make him a little Triforce for the chain he wears.
Step one was to mark out a triangle and then see how small a triangle I could cut in the center. My dremel cutting wheels are just over 15mm in diameter, so cutting a really tiny hole is next to impossible. Luckily I found a worn down cutting wheel that was only 8mm in diameter! That’s absolutely tidily!.. and perfect for what I needed.

Next I cut it out. Queue Sparks!

I left a little tab on the side, so I could keep it clamped while I cut it out and filed it.

I then ground down the edges to as close to the center as I could, leaving enough metal to keep the three triangles strongly together. Then I cleaned up the edges, so it’s not insanely sharp and cut the tab off.

One snazzy looking Zelda Triforce, complete with tiny hole to stick a chain loop on 