Display categories i three columns with icons on home page or posts

Hi, I do know about your directory plugin but I am already using a plugin that allows me to create bespoke front end forms for users and I am happy with that. What I would like to do is to use the existing categories I have and display them as three columns with icons on the home page. So do you have a product that will do this or is there a product you can mod to do this? I am using my site as an article directory.