The document linked below walks you through how to design a 'decorative wall calendar set' of your own. It may seem long, but it is very clearly written. Once you understand how to make a calendar, the actual time spent to create one is a matter of a couple hours. Not counting the time it will take you to find images.
How to Design Your Own Reusable Wall Calendar - a Tutorial - available at Scrbd (low resolution)
The same tutorial is available here in full resolution at our Skydrive.
