Giant Rocks for Painting – 5 Supersized Craft Rock Painting Stones, 4.5” – 6” inch Smooth and Flat, Non-Porous Painting Rocks, 100% Natural Multi-Colored River Rocks for Mandala and Kindness Stones is up for auction in Arts, Crafts & Sewing. The current bid is $5.50, 76% below the $23.00 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.