I don't think you realize how cold it has to be to get bubbles to freeze. I don't wish that type of cold upon anyone, even one who is prepared with all the handknits in the world. The website says -13°F, I think it needs to be closer to -25°F. We did it successfully once in Chicago many years ago when it was -25°F (and I admit it was wicked cool) but when tried it again when it was only -18°F they didn't really freeze but got sort of rubbery. We have a coldchamber at work that gets down to -25°F and my co-workers have tried it successfully gotten the bubbles to freeze. But, if it does get that cold in your neck of the woods, it is awfully fun, and I do suggest you try it. If nothing else it will take your mind off of how really miserably cold it is outside.