There are many ways to write artistic symbols of source characters. Here are two commonly used methods:

1. Change the three dots under the word "source" into Arabic numerals "3", then change the radical under the word "source" into "0", and finally write the right part of the word "source" in cursive script.

2. Write three points under the word "source" in cursive, then change the radical below the word "source" to "0", and finally write the right part of the word "source" in cursive.

It should be noted that the writing method of the original word art sign should be selected according to your own preferences and writing habits, and the signature should be recognizable.