10 Creative Label Crafts for Kids from Inner Child Fun -- No mess! This gumball machine would be cute to track # of American Girl books read (or a sticker for so many minutes read) during the summer. Love it!
Put 100 pieces in zip-loc bag, give it to them in the am to see what they can build. Let them work on it throughout the day between other activities. At the end of the day have them draw a picture of what they made and write about it.