Edible beer cans

Well, they're beer cans that you can eat. Made out of something that will last long enough to drink the beer without disintergrating and then you've got the post booze snack. Alternatively you could have them microvable or boilable but with a variety of greasy chip shop delights for flavour i.e. kebab - with or without chilli sauce - chips and fish. Everyone knows that after you've drank enough to need this kind of snack the texture isn't really important and the taste is pretty basic. Even if you're not feeling all that peckish at the time, you can save up your empties and invite your friends round for dinner. This also reduces the need to recycle as the traditional metal can should be.