I have produced a series of charms/pendants based on the symbols from my book. The first two offerings (the Holy Spirit and the Forgiveness charms/pendants) were originally available from a company called Shapeways between July 2011 and July 2012. It was a limited time offering. But the charms/pendants are back for 2015 and available in more materials and with smoother finishes than the original offerings. Prices range from $8 to $80 depending on the material.
Here’s the link to the store: http://www.shapeways.com/designer/universeisadream
Also, I do 3D design work so if you have any ideas, like jewelry ideas, for things that could be printed using 3D printing by a company like Shapeways, you can hire me to make custom designs printable with 3D printers. Just contact me.