Cans and bottles that tell you when your beer is cold are just too hard to operate. I mean, what if you want your beer ice cold? When the mountains turn blue does that mean it’s ice cold or just regular cold? It’s an important difference. One way to know for sure is to ditch the can and go for the Strapya World Frozen Beer Mug Maker. Consisting of a plastic handle, a base and the ice mold, the mug-maker lets you create a one-time-use beer mug made out of ice. Since the ice will eventually melt it will require require drinkers to stay at least somewhat aware, but if you really need some help in the matter perhaps drawing on a set of red mountains will help.
*** UPDATE 11/10/19 *** Product link above no longer works — looks like Strapya became Hamee — but Amazon does have it (low rated beware!):
Frozen Beer Mug Maker (Japan Import)
by Hamee