Ladybug rocks. I made my Mama one of these from Camp Wesley Woods sponsored by United Methodist Church in Townsend, Tn when I was 10 years old. The woman still has that rock - she uses it as a door stop (it was a river rock)!
Painting on rock
i did this like 15 years ago with my grandma and instead of a village we painted the rocks into animals.
Mandala Stones DIY Tutorial
Trees shaped to the individual stones - http://media-cache-ec0.pinimg.com/originals/b5/57/c4/b557c4c50dcf8d8e5dcb3d7869437dae.jpg