Do I need to sell a hundred weather balls?

It's not necessary. Mother-in-law refers to her husband's mother who died during the day 100 days. You don't have to buy a balloon arrangement, which is unreasonable and needs to be decorated with white cloth wreaths. Chongqing dialect calls her husband's mother a woman's mother. At home, she is called "mother" like her husband, which means an adjective in some dialects.