These bottles are already getting used as promotional items for companies. One company now makes personalized aluminum bottles as bridesmaids’ gifts.
So why not use personalized aluminum bottles as wedding favors or tokens? I’ve always hated bringing home wedding favors, which 9 times out of 10, are pretty useless anyway. I think it would be a better idea to give guests their own personalized aluminum bottle, with a little information on the wedding printed on the bottle. This way, guests can always remember the wedding when they take a swig from the bottle!