Rocks that have an even and smooth surface are particularly suitable for painting. River pebbles are best.
Many Ideas for Painted Rocks: bonus - tips and tricks for painting on rocks
Where can I Buy rocks for Rock Painting Rock painting supplies - Life of Colour
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Where can I Buy rocks for Rock Painting Rock painting supplies - Life of Colour
Where do you get rocks for painting? - I Love Painted Rocks
Rock Painting is a Rewarding Wellness Ritual
Best Place to Find Rocks to Paint
Where do you get rocks for painting? - I Love Painted Rocks
Easy Painted Rocks That Are Fun to Make! - Mod Podge Rocks