I've finally photographed two of the exoplanet pendants I'm bringing to Boskone.
Finding the right stones for these is difficult but recently found several that really worked well in the designs.

Planet is Peruvian opal and the satellite is a Madeira citrine. Setting is sterling silver.

Planet is a very unusual fluorite and a diamond star crosses it's satellite. (Diamond is larger in actual pendant then shows in photo.)
Both designs are about 1.5"
I'm finishing the final piece of jewelry for Boskone tonight. Then on to packing displays etc etc etc. (The is a lot of etc.)