Different Kinds of Smoke:

1: Fog:

Composed of Glycol/ Water Mixtures (Flog Fluid) into a heat exchanger, Is heated until the fluid is vaporized.
Fog Machine

2: Carbon Dioxide and Dry Ice:

This is used with the combination with Fog Machine. CO2 will dense the fog.

Dry Ice can also produce Fog, by adding Hot water on to Dry Ice. Dry Ice can be used with Fog Machine too.
Fog Machine + Dry Ice Container = Output.

3: Nitrogen:

Machine Heating water in container + pure Nitrogen = Output it.

Fog Machines: 

1: Tiny Fog Machine:

This tiny fogger can be used in different parts of body without actor being annoyed with.

 

Video Here.

2: Micro Fog machine:

See Video

3: Other Solutions:

Implementation:

Tiny Fogger can be placed in different parts of the King Ubu and later can be controlled by remote control to produce fogs.

Mobile Fogger which is a big fogger machine can be fixed at one central location of the body and then distribute the fog to different regions of body by pipes (flexible and light) and it can be controlled by remote control.