I have been trying various pieces of software on mobile to see what I can do with my fingers only. https://apps.apple.com/us/app/tayasui-sketches/id641900855 app is really helpful for create quick and easy content. Here are some examples of flowers I have been making.
Have all really been very expressive and wonderful to try. I like drawing fast and not trying to control my hands when I draw. I'm interested to see what comes out.