- flat rocks
- acrylic paint
- brushes
Do:
- Make sure the rocks are as clean of dust and other debris as they can be, and completely dry.
- Paint just the top side of the rock with either colourful designs or words that are pleasant in nature.
- Allow them to fully dry, and leave them in places where strangers can find them.
Notes:
- It's best not to use the good paint for this. Craft or dollar store acrylic paints are absolutely fine.
- Although I'm not familiar with the process, there are ways to make it more durable to the open elements so that sets of rocks could be made for a garden.