Prepare the play tray.
Choose a theme, such as dinosaurs, underwater world, unicorns or a season / ritual such as Sinterklaas, Christmas.
Fill the play tray with a base such as play rice in an appropriate color, kinetic sand or clay.
Add scoops, sieves, trays and wooden play tweezers.
Complete the box with figures that match the theme. They may also be abstract figures.
For example, a block can also act as a hay bale. Children have the space to give meaning to it themselves and to create their own world. You can also let your child do this last step.