Tornado
A fog machine can make a tornado if it is contained within an air-tight, low-pressure box. The air inside the box is rotated by a fan placed on the bottom and a suction device is placed on top. As the air passes through the box, fog is emitted by the machine. The fog is sucked into the stream of swirling air created by the fan and forms a tornado.
Remote Controlled Fogger
Equipping a fog machine with a remote control system allows you to control the flow of fog from a distance. The remote powers on the fogger and controls the amount of fog that is emitted. Use a remote controlled fogger on Halloween to scare Trick-or-Treaters. Hide it in some bushes or behind a prop and push the remote control button to spook everybody with an unexpected burst of fog as they walk up your sidewalk.
Colored Fog
The fog created by a fog machine can't be colored by using a dye or colored liquid, but attaching a light to the fog machine will do the job. The light must be used in tandem with powder that is dispersed into the air. The light shines color onto the powder particles as they travel through the air and mix with the fog. The powder reflects the light and creates a colored effect.
Fog Chiller
With a few alterations, a fog machine can be converted into a chiller. The fog machine is connected to an insulated box, such as an ice chest, with PVC or plastic piping. Holes are drilled into the box to create proper air flow for the fog. The chest is filled with a mesh tube that is covered with ice. As the fog passes through the mesh tube, it is chilled and expelled through the opening on the opposite side. The fog emitted from a chiller creates a low-to-the-ground fog that is often used in graveyard and swamp scenes. It is not used to chill food or drinks.