Stefano Furlani lives near the beach, and as a father-son project he started collecting rocks for collages. The results are pretty neat!
This video has some stills of the steps in creating this cool owl:
https://youtu.be/90eSkD_YoJ0?t=2m18s
Lots more on his Facebook page.
• Sassi d'Autore (via Bored Panda)