The world’s natural reefs are rapidly declining. As they are essential to healthy marine ecosystems, we need to turn around this decline. Recently, marine biologists found a new method for restoring flat oyster reefs: oyster larvae settle on a small biodegradable product which is then ‘sown’ onto the ocean floor, to naturally form oyster beds. The physical design of this product was the objective of this study. As the product degrades into biologically safe components, large areas of reef can be restored in a minimally invasive way.