Tiny Books

I am an avid instagram user.  I've been thinking about ways to use it in the classroom.  I know it can be used to document the year and share it the daily photos with parents.  However, I wanted more.  Recently, I discovered the website Printstagram.  I fell in love with their tiny books.  These little bitty books are 3 for $10.00 and the hold 24 prints each.  The backs of these books are magnetic, so they attach to each other.
If you have a classroom instagram account you can have students upload the steps in a science experiment, make a tour of the room in pictures, or identify real life geometry vocabulary in pictures.  These would all make great tiny books.  I think that I will also use instagram in my phonics lessons and have students to take pictures of words that have the weekly phonics skill.  Wouldn't it be cool to have a book of pictures that all have a r-controlled vowel?  I think it would be neat to have a tiny alphabet book with pictures taken for each letter of the alphabet by your students.
How would you use these tiny books in your classroom?