Continuity mistake: When the kids are building the card castle to see who would get to choose what they get with the stamps, Jan is putting a card on, in one shot her hair is up in a ponytail then in the other shot her hair is down. This happens back and forth when the shots change.
Continuity mistake: When Marcia takes her last turn placing a card at the top of the tall house of cards, in the shots facing her she's stressed about accidentally collapsing the cards so she holds back her charm bracelet with her left hand, but in the first shot facing the three boys Marcia's left arm is down at her side and the charm bracelet is dangling at her wrist, right beside the cards. (00:21:00)
Continuity mistake: When Alice enters the kitchen you can see the ironing board from the doorway. When she is giving Tiger a bath the Ironing board has moved to the wall that can not be seen from the doorway. (00:01:30 - 00:04:05)
Answer: The dangling bracelet was used for dramatic purposes - to keep the audience on edge.