I plan to glue my pages (many more not shown) into a gessoed children's board book from the thrift shop. It has a small square format that I really like.  Two innovations for making marks: I glued hair ties to a toilet paper roll to make random-ish circle marks (shown in photo); also sliced up a styrofoam "pool noodle" to make interesting circle marks with lots of texture. 

Hardest part of this course was selecting a color palette! My Maganese Blue and Primary Yellow were too bright! I discovered I's like more neutral tones in the future.