You can find all kinds of special symbol fonts by searching for "pattern fonts" on the Internet. You can download, install, type, use graphics directly, and edit with image software. Occasionally, you don't need to download fonts, just use the picture format. There are a lot of online materials, which can be downloaded at will, and you can also use picture editing software, which is very simple. You can combine and puzzle at will to form various patterns. In fact, there are some patterns that can be used in the input method (see attached figure), and there are also many strange tricks on the Internet. Web page link