Kids can pan for silver and gold right in their own backyard with this summertime sandbox activity.
For a fun party game, give kids 1 minute to uncover as many nuggets as they can.
To set it up, first place 20 or so small rocks and 1 teaspoon of silver acrylic paint in a sealable container. Shake the container to coat the rocks, then set them on waxed paper to dry.
Next, rinse out the container, add another batch of rocks plus 1 teaspoon of gold acrylic paint, and repeat the process.

After the rocks have dried completely, bury them in your sandbox and send kids out with toy shovels and sifters to find the treasure.