I recently created some simple and flat rank images as I haven't seen too many like them around. The ZIP file includes four pre-made ranks (the ones you find on the preview) and a PSD (Photoshop) file so that you can edit it and create your own ranks with your own colors.
The font used is called 'Lato' and is available for free through Google Web Fonts.
This is released under WTFPL (do what the **** you want to public license).
