Dotty Do-mini-o by Alan Warner
A domino with white spots is shown and placed behind the performers back and they change to blue. The domino is again placed behind the formers back and it is white again (bet you did not see that coming). This goes on again and eventually the performer lays the domino on the table and when the spectator turns it over it is a multi colored on the rear! It is about 3×1 inch. Nothing is added or removed. No flaps! Clever workmanship as expected.
Only 1 left in stock