The "paintingrocks.blogspot" has a lot of great pics and tips for painting rocks, best types of rocks, paints, brushes, paint pens sealing, etc.
Who knew you could buy bags of "Caribbean Beach Stones" on Amazon?
This link goes to the discussion in the Advent forum about creating Baby Jesus rocks as an Advent project, including, how the congregation "hid" them around town for strangers to discover.
FYI: Supporting Members can see the Writing Team's "Jesus Rocks" Storytelling Workshop that uses rocks to tell the Palm Sunday story. ..Some rocks are so dense!