special effects for LI Sound

Hello,

This is for LI Sound. My daughter is getting married next Dec. at the Watermill. She has booked with you (LI Sound), and I thought that I had seen on your website, that you can do special effects (such as fake snow, dancing in a cloud, etc.) Are you able to do these things at the Watermill (I'm particularly interested in the snow). If so, what would the cost be? Thanks so much for your response.