The demonstrator, Phil Madley, gave a very interesting and entertaining demonstration. After talking about the history of wax painting and showing numerous examples of his work he demonstrated the use of different tools (with not a paintbrush in sight).
Some photos of the demonstration are shown below.
Dashing away with a smoothing iron!
Detailed work with an electric pen
Using an electric paint stripper
After adding some silver wax
Phil Madley with one he painted earlier.