You can go to the mall to buy a suit or dress for that counter, or rent one from Xiaobailou or customize one on the top floor of Arc de Triomphe Building. Look at your budget and the desired effect. Of course, customization will be more suitable for your figure. If you want to buy your mother's winter wedding dress, you can go to Tianjin Hutong and Wang Lan Zhuang International Trade City, where things are relatively complete.