There have been questions about using Minor Illusion for communication but all of them where about trying to mimic speech. This question is about communication in general, so it is no duplicate of this or that question.
As the other questions where so specific about using speech answers that dealt with other forms of communication were downvoted. But as I see them as useful for the general concept of communicating via Minor Illusion I asked this question specifically to allow them.
Are there ways of communication Minor Illusion can be used for that are not using speech?