To address the problems of marine plastics and public science, we created an educational tool geared towards children: the Ice Cream Scoop Trawl. This is a simple technology that children can help make and use it to learn about marine plastics. It is used to test for presence of marine plastics at the water's surface. An ice cream container is modified so that water can pass through it and fitted with a handle so that a child can pull it through water. The trawl features two types of mesh, one larger to prevent large debris from passing through, and on the further end, a finer, screen mesh to prevent collected samples from escaping. Reused, affordable and readily available materials are used in its design to prevent cost barriers for individuals interested in building their own technology.