It is "all five senses props" in Tik Tok application. The following is the specific location of this prop:

Equipment used in the demonstration: Huawei Enjoy 20, EMUI9. 1, Tik Tok 14.9.3.

First, open the Tik Tok application and click the search icon in the upper right corner.

Second, after opening the search bar, search for "all things five senses props".

Third, as shown below, the first item in the search results is props. Click the Use button.

Fourth, the effect is as follows. At this time, you can turn on the lemon face effect (the default is lemon face, and props can also customize any background).