they need to make them thick enough so holes dont go through them as easily.
You can use silver jewelry dip - but because it's not sterling don't leave it in for more than a minuteIf you've worn the silver completely off there's nothing you can do.
That is a really really good point! who knowsthe cup holders in the car? just kidding, considering they are big enough to hold a nalgene or a super gulp.hmmm.
A significant proportion of canned soft drinks are sold by vending machinesIf, for example, Coke discontinued the standard cans and switched to new cans, vending machine owners would have a choice - scrapping their vending machines and buying.new ones that fit the new cans or taking Coke out of the machines and replacing it with Pepsi or RCThe bottlers also have significant investments in the machines that fill, cap and handle cansAll those would have to be replaced or re-engineered I calculated the saving in aluminium content per can to be 1/10th of a centSo if a bottler used one hundred million of the new cans, it would save $1,000,000probably not enough to justify an big investment in new machinesProbably the most economic sense would be to have the current machines wear out and replace them with the new sizeThen there would be no waste from making good machines obsolete.
