Tried this just before sunrise today as it was -2F when I got up. I decided to blow bubbles from my home office window on the 2nd floor figuring it would give them more time to freeze. Sure enough they froze before they hit the deck below. Unfortunately, the regular bubbles I used from the dollar store sort of just collapsed on themselves and didn't look all that great. I suspect the water content isn't high enough. They just sort of sat there and crumpled up and died.
But I wasn't about to waste the cold, so I took some dish soap and mixed it with water and tried again. This time they seemed sturdier - I could actually hear them hit the snow as they landed, which was very surreal. Unfortunately, blowing them from the window meant that I was at the mercy of drafts to land them where they wanted, and everything raced towards the house since it was warmed and there was no way of getting a good shot.
So, not to be deterred, I donned my warm coat and gloves, grabbed my cameras and bubbles and went out in the cold, just before the sun cleared the horizon. The problem now was that when I blew the bubbles they didn't have enough time to sufficiently freeze before hitting the ground. So, I would try and catch them with the wand and then place them. This worked, and you could see the bubble freeze on the wand. Unfortunately, you couldn't preserve the whole bubble while placing it without it bursting.
Thankfully, that made for some interesting pictures.
More to come...