When applying the grease mustache Lucille Ball tries to pocket her compact mirror but it slips to the ground. The hose to the jack hammer then gets momentarily snagged on the yellow 'caution' saw horses.
Lucy tells the Jeweler that if she doesn't find the ring she'll be taking a "one-way trip to the moon" quoting Harry's threat at the end of the previous scene. This despite the fact that she was not in the room when he said it. She had gone off to wash her hands.