You might have seen sand plaster molds to make everlasting sand impressions of kid's hands and feets, this beach craft is similar, only it uses a starfish instead.
You can create this beach craft right at the beach, or just take some sand with you and do this Sand Craft at home. It will make a super beachy decoration. Make a Sand Plaster Mold by pushing a starfish (or shell) into the sand, face down, and a frame around it.
Then after removing both, the starfish and the frame, you fill the areas with plaster, and let dry.
This is what it will look like with a frame mold. You can play around and find your own design. To create a disc/circle might be very nice.
