This is a great project to complete during those last few days of school. Students provide a vocabulary term for each letter of the alphabet. They will define the term. Then, find an image as an example. You can elect to allow students to use terms from the entire school year or just one semester.
I've successfully stretched this project to last 5 days (55-minute classes) by requiring each student to complete their own book, to work on them only in class, and the example to be a color-coded drawing. They also had to design a cover for their book using plain copy paper.
In addition, this can be easily used in the online classroom settings, such as BlackBoard Collaborate or Zoom, by uploading the documents in breakout rooms. Students can work in small groups of no more than 3 to complete.
Don't hesitate to reach out if you have any questions. I hope you enjoy!