Hi @dianna_hall ,
If your institution has the Google integration with Canvas, and if Google allows you to create the characters as desired, you may want to use Canvas by embedding Google Docs and Slides onto your Canvas Pages. Normally this process is not recommended because it doesn't allow screen readers and auto-formatting features to work, but your circumstances seem to warrant the use.
If you don't have the Google integration, you could still produce in Google and then convert to a JPG or PNG and upload as an image to display on the Canvas page.
As a last resort, and if you are required to use Canvas, you could place a link on your Canvas page that directs to a Google Doc (or Slide or Drawing).