Abstract: Connector systems for, for example, polymeric solid foam products and products using such systems are disclosed. The connector systems may comprise a pair of hollow coupling members embedded in adjacent foam bodies, such as sections of a surfboard or paddleboard. When axially aligned, the coupling members may be connected together by a connector member that extends into each coupling member. The coupling members have internal projections. The connector member has bent connector channels along which the projections can travel when the connector member is rotated about its axis and in so doing the foam bodies may be connected together or disconnected.