I had an idea last weekend with a book I wrote a couple years ago -- Explanatory Notes on Jesus' Birth. I reformatted into the thirty-one days of December and published it as Thirty Days of Jesus' Birth. Unfortunately, I went a little Philo crazy on John 1, so I regret not editing some of that out. But it has color images and covers John 1, Matthew 1-2, and Luke 1-2.
I thought this might actually might be a good way for me to remotivate myself to finish my Explanatory Notes on the New Testament. However, it really didn't garner many sales anyway. Most of the sales were people who know me. The two or three days of Facebook ads I did went nowhere.
But the thought was to work toward March for something like "Fifty Days of Jesus' Passion and Resurrection." I've already done Explanatory Notes on Mark 12-16, Matthew 28, Luke 24, and John 20-21. I would need to complete Matthew 21-27, Luke 19-23, and John 11-19 by March. Next year, I would fill in the blanks and have all the Gospels done.
Eventually, it would be a "Through the New Testament in a Year." It would start in December with the birth stories. Then January-February would go through Matthew 3-20, Mark 1-11, Luke 3-18, and John 2-10. Then Lent and the beginning of Easter would finish the Gospels. Then fifty days in Acts covering Pentecost. Then about a chapter a day to finish up the New Testament by the end of November.