Any type of rock – preferably smooth and at least the size of your fist. soap & water, stiff brush, paint (left over house paint is ideal), miscellaneous craft supplies.
Wash and dry rock. Paint and allow to dry. Decorate.
“Examine its shape to see if it resembles anything in particular (turtle, flower, etc.) and paint as required.”
“Paint to look like a “cow rock” or a slice of watermelon.”
“Paint the words “urgent”, “messages”, “to do” or the person’s name on it.”
“Consider gluing a piece of felt or other fabric to the bottom.”