Possible Clues:

• Take gamble about lines to produce theatrical effect
• Substance used for misty stage effects
• Producer of stage mist
• It may keep ice cream cool
• Solid carbon dioxide used as a refrigerant
• Gamble with taking lines, a product of being solid?
• Theatrical smoke source
• Picnic cooler
• Old disco release that's uninteresting, rocks
• More than one die crossing railway in mist