At the beginning of this episode when Tabitha is trying to get Adam to drink his milk, she floats the cup up & you can see the two strings floating it in the air.
Where does the Prince toy go? You see him in the bedroom, but when they go downstairs to play hide and seek, he is nowhere to be seen and never appears again.
The answer lies in the story and the fact that the child actor in the prince costume was unable to shoot the final scene. Darrin explains that the troll gets a haircut and uses Berkley's Hair Tonic, transforming him into a prince. There should've been two characters in the living room scene--the troll and the prince--but without the other actor, they simply thought it was sufficient to explain the story rather than demonstrate it.
The answer lies in the story and the fact that the child actor in the prince costume was unable to shoot the final scene. Darrin explains that the troll gets a haircut and uses Berkley's Hair Tonic, transforming him into a prince. There should've been two characters in the living room scene--the troll and the prince--but without the other actor, they simply thought it was sufficient to explain the story rather than demonstrate it.