I finally got bubbles to freeze!
I used the recipe from this link, www.apartmenttherapy.com/how-to-make-frozen-soap-bubbles-.... I think there were two keys to the bubbles freezing this morning and not yesterday.
1. There was no wind, I think this was a big factor in why they weren't freezing yesterday, they were being carried by the wind too fast and had no time to waft down in the cold air. I definitely think the calm winds helped this morning.
2. The bubbles just cannot land on cement and not break. The bubbles need to land on something soft like snow (as seen in the link) or grass, or leaves, or trees (where my bubbles froze).