Have you filled your happiness bucket today?
The children at Dungog Community Pre School hope to do just that for the community by hiding little hand painted rocks around the town.
Teacher Jessica Jones-Mashman is behind the latest project at the preschool, a fun hide and seek game which has been sweeping the nation.
"It's about kindness, being connected and learning that it's not all about receiving," she said.
The children have painstakingly painted 28 rocks (with the preschool name on the back) and hidden them for others to find.
The preschoolers' project ties in with a book they have been reading, "Have you filled a bucket today? A guide to daily happiness for kids" by Carol McCloud.
The book has the concept that each of us has a bucket, which depending on events and interactions during our day, can either be emptied or be filled.
"We want to spread some kindness and sharing and make other people happy - and fill their bucket," said Mrs Jones-Mashman.
The children said the lucky finders can either keep the rocks or pass on the happiness by hiding them again.
They hope to keep track of where the rocks end up through the NSW Rocks Facebook page.
If you need a little hint to help you find a rock and spread the joy, the rocks are planted in Dowling Street gardens and businesses, in Jubilee Park, the trees near the library and near the community centre.