Ok, found her. Except it wasn't on this board, but on a different one for different software. How she did it was to create the images she wanted to use, put them side by side in a rectangular block, then made an image map of it. By doing that you can just use the links that are used with the regular social media links, only your using them in your own image map.
You would think that as long as you use the same links provided by the social medias, then whatever image you are using wouldn't matter... ?