Mother's Day Gifts. Garden Stone, Mom, Grandma 6-7 Inch. This is a beautiful garden stone that I will custom engrave for you. Just contact me and tell me what you would like. Perfect gift for anyone. I can personalize each stone. Limit 10 characters per line, 2 lines. This river stone is approx 7-8 inches. Each stone is handpicked for your design. Just leave me the details in the Comments Section during checkout.