As in much of the Northern USA, it is cold here too this weekend, though when I checked the thermometer when I got up today it read 10 degrees (F) which is not that cold compared to say, Maine or Vermont. I told my students that they should go out at night when it is coldest and blow bubbles, to see if they could get them to freeze, another tip picked up from the prolific Swans on Tea. I hope some of them got it to work! There are some awesome photos of frozen bubbles (they look like moons from Saturn!) on the site Swans on Tea linked to.