I made these to print out and sketch with when I'm in the thumbnail phase of making a book dummy. Feel free to download and use them yourself!
I also love Debbie Ridpath Oh's templates that encourage you to think about multiple options for each spread - for me that would be a next step in planning out the book, after I've already paced it out with thumbnails.
A few things for kids (or adults!) to color in.
The Classroom - Color & Find It! (2023 ABLArtfest Project)