Magic necklace gets that way because you can carve any shape you want into the pendant and have it appear really thick and substantial.
Chain is a tube that can be opacity mapped for links or patterns.
Templates are a simple square texture for pendant, and rectangle for chain (256x64 or 128x32).
If you make the chain solid, use something small like 32x8. Make sure opacity map is same size.

This is not an ugly derive colour. No refunds. TRY IT.
THIS IS FOR MALE AVATARS!

See what's been derived from this mesh!