Embodiments of mechanisms for resealing a can are disclosed. The mechanisms are adaptable to cans currently on the market. The mechanisms can be marketed as a stand alone (i.e., a post-purchase product), or alternatively, they can be applied by a manufacture (e.g., a cola bottling or canning company) to existing cans (e.g., during a filling stage of the manufacturing process or at another point in the process). In the embodiment, a can resealing mechanism includes an inner and outer flange configured to engage inner and outer surfaces of the can and the rivet and bent down flap portion of the can.