Bad news gentlemen. There is not enough interest in another calendar to make it worth the time to make one. Until you've done it its hard to understand how much work goes into the initial layout and shipping and controlling all the finances behind it. Just not worth it for two dozen calendars.
In 2009 when I did the first calendar I sold just shy of 1,000. This year I've only got orders for 21. Makes my heart sad to see interest fade away on these old machines.