Somebody is in a normal situation, alone. They take out a bottle of the product, and have a drink. Their skin colour changes to correspond with the flavour. The ad ends with: "[soft drink] - now available in all colours of the rainbow." Five or six different ads will be done for each flavour/colour.

Raspberry - The person's skin turns red.
Orange - The person's skin turns orange.
Lemonade - The person's skin turns yellow.
Lime - The person's skin turns green.
Grape/blackcurrant - The person's skin turns purple.
Clear lemon - The person turns invisible.