This mock up was made to be an example of an item that appeared on the show. Namely the #1 Goddess. However a running joke is the character that uses the mug is also the “World’s Okayest Psychic”; thus the logical approach was to make a mock up of a thermal changing mug that showed off both sides of the character.
And then make a .gif showing what the transition would look like.
Resource Used: Simple Coffee Mug Mockup