What is it about Chinese and their tendency to pick-and-match their food? There is this distinct food culture in Hong Kong where you get to fix your meal the way you want from a variety of food and condiments.
It is something like “chap chye peng” in Singapore, only better.
The way to do it is this. You choose the main soup base you want, and then add on whatever you wish at incremental prices. The end result can be fascinatingly delicious… or atrociously laughable. It helps, of course, if you read Chinese.