One of my favorite retirement activities is composing books for the next generation of (hopefully) readers. I say "compose " because the stories and ideas come from photos sent to me from family (many many thanks to photographers for sharing their talents)
The kids (Oscar, Jaime, and Lola) are always the main characters in their books. The critics ( the kids) have given rave  reviews (so say their parents). I guess you can take me out of an educational setting (school) but I HAVE to keep teaching .....Lucky for me I was an early childhood teacher so I am in my comfort zone (I taught PreK through 3rd grade) BUT I am in trouble as an author when they hit 9 years old . Or sooner. And they have already surpassed me technologically....computer, etc.
You can easily make your own. All you need is a blank book (Amazon), a printer, pictures, and tons of scotch tape or glue.Old magazines, books for cutting up, and internet for specific subjects (dogs, cats, castles, cars, dolls)
It is an activity that I can do rain or shine, standing or sitting, no PD  
problems to deal with. (or copyright or publishing laws I hope)

Happy Passover or Easter or spring or WHATEVER