Pebbles:
 
Conch:
 
Small shells:
 
White rock: 
 
Seaweed and surf!
 
Lobster-trap tag:
 
I might give ol' Bob a call and let him know we found it.
Sand:
 
Behind the beach, deer leavings!
 
 
In the distance, a Wild Greg reclining on the sand!
 
I know you're not supposed to feed wild animals...but he looked hungry, so I took him for lunch!
 
Then he followed me home.