S2kit: A Lite Version of SpharmonicKit

Advertising in the sky is produced by a plurality of fog emitting nozzles, for example each at the outlet of a canister containing fog producing material under pressure, which canisters are supported in spaced apart relation along a length of a winch line cable suspended from an aircraft. Each nozzle is controlled by a solenoid valve, the solenoid of which is activated on a timed schedule predetermined to contribute to the production of one or more letters, numerals, and/or designs in the sky in the creation of advertising material.