Margin Option to add margin in between icons

Hi there, I hope to have a margin option that we can add the amount of margin that we want in between the icons. Yes I know that I can easily add it in the css file, but then if I add a margin-bottom, then even the last item will have, which I do not want. I will love the plugin to handle it in the sense that margin will only be added IN BETWEEN the icons, and not to the last one.