RSS, OPML, Tag, Bookmark Icons

We have a “standard” RSS icon and a similar working OPML icon, but I’d like to work with the graphics community on creating a “standard” Tag icon and a “standard” Bookmark icon – in a similar square style. These icons would tie into the functionality of my first two WP plugin ideas – where the user would only need to display one icon, and when the visitor hovers over it, would receive a nice callout to selected services. We could eliminate a massive amount of confusion and save page space at the same time. I think it’s time we started thinking about this – but I’m not a graphic designer. Help?