Customised laser-engraved necklace

I made these necklaces for season's gifts last year. I gave them to women and
girls and was surprised that boys also liked them.

I used gold-plated or silver-plated chains. Some recipients prefer to have them
as bracelets.

Children between 6 and 12 years of age enjoy making the chains themselves, and
I found it a good bonding activity.

# Joining with a chain

You need chains, jump rings, two sets of pliers, and one cutting plier. Open
each jump ring with a twisting motion, place the chain and the hole of the
acrylic inside the ring, then close the ring with the reverse twisting
motion. See, for example, this tutorial:

https://www.youtube.com/watch?v=9GoA-OZjvKc

# Size

The designs use 1 pixel = 1 mm. The names are sized for 3mm acrylic and the holes
for 6mm jump rings.

# Procedure for different names

I included some common names. For my next batch of names, I might write code to
generate new names automatically, up to the placement of the holes (which