I love to alter composition books and other types of journal books.
That said, I have found at WalMart a primary journal. Same black and white mottled cover as on the regular ones. the Inside however is blank on the top (small half) and has the primary lines/dashes that primary grades use at school. I am creating some to use when the grands come to visit this summer as we can add photos or their own art work to each page to create a memory book they can take home.
A company called Really Good Stuff sells more than 20 types of blank journals---all with covers made to decorate. They are aimed at the school market and must be purchased in sets of 12....however, if you or your group planned to make some, a purchase of more than 3 sets(36) receives a discount that takes the price of some types down to 99cents each.
they are on the web ---not a link just the URL
www.reallygoodstuff.com