Help finding this simple plugin

Hi–I’m in need of an extremely simply plugin and can’t find it. Here’s what I need it to do. Have a plugin settings page with a browse/upload area to upload an image (or multiple image spots if you want). Once the image (or images) is uploaded, it’ll serve that image wherever on your template you’ve added a little snippet of PHP.

I need this for the sake of the user. They have 3 images on their homepage that have quite a bit of CSS styling and want the ability to change them out regularly. I thought a simple plugin settings page with 3 browse/upload fiels for them to update the pictures would be the easiest solution, but I can’t seem to find a plugin that just does this.