I used a strip of magnets at the bottom as the "check mark collection area". and then I cut some of the strips up into rectangles for the check boxes. Cutout the check marks and the stars and moon from construction paper, and mounted on a posterboard my husband got for me at Walgreens while picking up the pictures - thanks honey!! Only spent about two hours total on the project, including taking the pictures yesterday - well worth the time!
It's taped up on the wall in her room. And she is very much enjoying putting the check marks up as the bedtime routine progresses. She likes to match up the check mark to the correct colored rectangle:
My husband said my crescent moon looked more like a banana. :-P
M is asleep in her own bed for two nights in a row. A new record!