This is not the lightest option (about .5 oz), but it is a very clean looking lid that fits fairly securely. Altoids mints come in square, oval, and circular tins. The lids from the round tins are practically perfect fits for the Heineken can and slightly looser for the Fosters can. When I get a few minutes, I will also try to cut the lip off of the bottom (body) of the tin to see if it works as well/better. It should be the same diameter, but isn't stamped and might look nicer, be lighter, and can be controlled better in terms of the "depth" of the lid.