If you've never used dry ice before, consider Halloween your excuse to have a little fun. What's Halloween without lots of candy and lots of spooky fog billowing at your party? Using dry ice to create that effect is pretty easy, but it's important to follow a few safety tips, found here, whenever you're in contact with the stuff, as it can be dangerous if not handled properly. Once you're up to speed with safety, it's just a matter of what effect you want to create.
1. In cauldrons.
Every good Halloween party needs slightly over-the-top decorations, and a smoky cauldron is classic one. They're cheap to buy and act as a fun centerpiece for your gathering. Fill one halfway with warm water and add a few chunks of dry ice at a time until fog and smoky are pouring out of it. The effect will dissipate over time, but you can add more dry ice to keep it going.
2. In jack-o'-lanterns.
You could just put a candle in your jack-o'-lantern, but having smoke pour out of its eyes, nose, and mouth is so much more amusing. Place a large, tall glass inside the jack-o-lantern and fill it halfway with warm water. Drop a piece or two of dry ice into the glass, place the top lid back on the pumpkin, and let the smoke flow. You can add more dry ice over time to keep the jack-o'-lantern smoke going.
3. In cocktails.
What's even more fun is adding dry ice to your guests' cocktail glass or the punch bowl. Using dry ice instead of regular ice cubes not only causes the drink to release smoke, but will also keep it extra-cold since dry ice is significantly colder than regular ice. Just be careful that guests don't come in contact with the dry ice — it can cause freezer burn.
Read more: Use Dry Ice to Create Smoky Cocktails