On our coffee table sits a pyramid of connected four clear, solid glass balls 5 inches high. When the sun hits them through a window, the glass balls burst into a rainbow of colors. As long as I can remember, these beautiful glass balls have always been on display in my parents’ home and now mine. These glass balls were a wedding gift to my mother and father when they married in 1921, which makes them 100 years old.

The glass balls are a genuine family heirloom and they will be passed on to one of my children when I’m no longer…