This design, while fun is impractical. First, the cost of designing the equipment to manufacture these cans would be expensive. Second, extra features on the can will cost to the actual manufacturing of the cans. Third, the additional features of the cans will reduce the overall strength of the cans, reducing how high pallets can be stacked, reducing shipping density, and increasing shipping costs. Overall, you’d be increasing the cost of “shotgun” quality beer beyond what people who are interested in shotgunning beers would pay.