I saw this project and decided to give it a try. I gathered 4 bowling balls. A couple of them my husband found in a dumpster. What a great guy helping me in my crafting! They were ugly and had several scratches but that just adds to the charm (the bowling balls, not my hubby). I washed the bowling balls and then wiped them down with rubbing alcohol.
I painted them with metallic spray paint and Voila! pretty gazing balls for the flowers beds that can withstand hail. The original project called for chrome paint but hubby picked up metallic silver and I like how they look. We are in process of redoing our patio so I didn't bother putting anything underneath them to protect the patio before painting.
Here is how they look sitting in my flower beds and rock garden. Please ignore the weeds. Between all the rain and my allergies, I can't keep up with how fast the weeds grow.