Great idea, but three cautions when using dry ice.

First: Dry ice is ultra-cold -109.3°F or -78.5°C, use insulating gloves whenever handling as severe burns can occur.

Second: Dry ice is frozen CO2, as it converts to a gas it expands, never store dry ice in sealed container.

Third: Dry ice as it converts to a gas is heavier than air and will displace air, never use in a confined area. Make sure you have adequate ventilation.

Pete