Build a Treasure in the Sand... Our affordable sand impression art experience provides the ability for a customer to build their own treasure utilizing our mobile sandboxes in four short steps: Step 1 - Choose an item from a variety of shapes and sizes and we will prepare a sand mold for you. Step 2 - Decorate your sand imprint form with our island bling, including shells, sea glass, rocks, or tons of other cool items. Step 3 - Once completed, our staff member fills the mold with our proprietary mixture of plaster called Isla