Buttons on the left of the topics page

I was wondering if anyone has seen an instance in which there were buttons added to the left of the latest topics page that we use for our landing page. We were exploring the idea of adding some navigation buttons to help new users find common categories that would support some of our biggest questions. Just wondering if something like this has been done or if there are some suggestions on a better way to do this.

Here was a quick example of the thought.