During its ice bottle giveaway in Colombia, Coca-Cola gave away an average of 265 frozen bottles an hour, the company says. Here’s how they did it: “Micro-filtered water” is poured into silicone molds, then frozen to -13°F. The ice bottles are shipped empty; servers fill them with soda right before handing them over. (So in fact it’s more like a bottle-shaped glass.) To prevent your delicate fingers from getting stuck to the ice, each bottle is wrapped with a branded elastic band, which Coca-Cola hopes you’ll wear as a bracelet after you’re done with your drink. That’s one way for the company to make the most of this marketing effort.