Pacific oysters, introduced to Europe in the 1960s, have spread widely, forming feral populations with commercial potential. Here, we explored commercial opportunities for oversized and clustered oysters obtained from management harvest. We show that oysters obtained from management harvest have various applications - such as in design, animal feed and functional foods - in line with circular economy principles. Further research on processing, legal frameworks, and a Nordic collaboration could boost ecological and economic benefits of commercializing invasive oysters.