Click on anything black and white for a printable to get you started.
Start with a good cover. I thought that "I Believe" is a good statement. Then kids can look at their notebook and say that they believe everything that is contained inside. This time, I used a Composition style notebook, but a spiral bound notebook works fine. (I do recommend glue sticks, tape, and staples over liquid glue for obvious reasons. A notebook that ends up only having one page because they are all glued together isn't much of a notebook.)
Add a copy of the Creed, with a twist. Print a copy of this two-page, word by word Creed, have the students cut it apart, mix it up, and see if they can glue it back in order. I don't recommend cutting each word apart unless you have very dedicated, detail oriented students and a lot of time. Instead, cut it into strips, which is much more manageable.
Try Wordle. I love Wordle. Paste in or type a bunch of text and it randomly creates this cool word art. Students can change the colors, fonts, layouts, etc.
The size of the words is proportional to the number of times the word appears in the text. On this one, I intentionally made "The Nicene Creed" large, but the rest of the words help us to see what words are used most often.
Add some flip books or other fun things. Directions and printable for this one abut tough words in the Creed can be found here.
Add some lift-the-flap-facts about connections between the Creed and Scripture. There is also a blank area for writing notes. You also could add Catechism references.
Finish up the section with a "Yes" flow chart. Since "I Believe" is the theme, have the students add things that they can say yes, they believe.
There are some ideas to get you started, but the possibilities are endless!