Here is the production line. He filled five-gallon buckets with water and let them freeze overnight. Then he'd dump the ice out and the outside is frozen but as you can see, there is a hole in the top and a really cool looking roundish space inside that hadn't froze yet. Mitch makes the hole in the top large enough for a candle and dumps the extra water out and wala: ice lantern. (I know it's viola) They are pretty cool. Mitch and the kids put them on the deck, along the sidewalk, along the sledding trail and around the bonfire area. It was so beautiful! Here's what they looked like:
The flash on my camera kind of ruined the effect. Just imagine them in dark, with their little candle-lights flickering through the clear ice. Sooooo pretty.
Here's a picture with no flash. Not the best quality photo, but you get the idea.