Our first balloons were pretty tiny, so lately we've been playing around with filling them a little more. D adds a couple drops of food coloring in first, then we attach the balloon to the faucet and fill it up. And then, we put it out on our porch overnight. By morning it is completely frozen, so we'll take off the balloon part and they really do look like this cool massive frozen marble. I've tried to get D to want to leave them outside in the snow as decoration (and see how long they last), but he and Q like bringing them inside instead and watching them slowly melt in a pan on the table.
So that's our cool little cold-weather project. Now that that's done, I'm getting ready for it to start warming up again outside. That'll happen soon, right? Right?