I've found several recipes for making and molding sugar glass, but it seems that it get's fucked up in the heat. We could perhaps make it on site, pour into bottle molds and then put in a cooler and only take out directly before use? It's a really simple recipe to follow, though I'm not sure how easy it would be to mold into a bottle shape.

Experimentation awaits!

Ingredients:

2 cups of water
1 cup of pale corn syrup
3 1/2 cups of sugar

What to do:

You will need a thermometer to measure the temperature of your mixture. Mix everything together and bring it to a boil (this happens at approximately 100 - 110 ° C, depending on the quality of the syrup). Leave it boiling for about 15 minutes, but try to keep the temperature stable.

Then, after the 15 minutes, let the temperature rise to 50 ° C hotter than its boiling temperature (if yours boiled at 105, cut it off at 155 ° C). This should take a little less than an hour, during which most of the water boils away, and the mixture becomes fairly thick.

When you hit your temperature, pour your sugar glass on a thick glass plate (if you are trying to make window pane) or a mold (if anything else) and let it cool off.