The other thing I'll show off here is using a Dremel to make the process easier.
You can see an example here of how it looks when I finished.
I had considered replacing his teeth with stones, but that was looking a little logistically crazy and to be honest, I liked how his teeth looked. While rooting through my terrain bits I came across the pearl chips and it all came together.
You can also carve the nails out with a knife, but a rotary tool is just tons easier and faster.
