A couple of days ago I was making a Bone Ring and I had a little piece of bone left over. With that I made a little Triquetra Pendant for my girlfriend. As usual, I used simple tools that anybody can have at home (no fancy lathe or CNCs).
Part of the work was already done for the ring that I made so I will just cite my other instructable: Celtic Knot Bone Ring
The close-up pictures were taken with a Pentax K10 D and a Tamron AF 90mm f/2.8 SP Di macro lens.
The other pictures, with a Pentax SMC-FA 50mm f/1.4.