Sometimes, a person may need a little token that says "I care". As a rock, stone, or pebble is free and a Sharpie is a buck or two, create that little token. You could make somebody's day.
All you need is a little creativity!
Think of little positive sayings to write on the rock, stone or pebble. Don't want to write? Draw something! Want more than a Sharpie? Use some paint!
You don't have to be on the beach to place these! It could be your church parking lot, grocery store parking lot, a parking garage, at the post office, the library, etc.
It's totally harmless in a world that needs much love and caring, instead of violence.
Have a good one.