Encourage kids to read in the library/media center! This works wonders with my K-3rd kids in my school, as well as some of the bigger kids.
Get bookmarks, a treasure box sign, postcards to write to the library fairy, 2 styles of reading logs, and some hidden treasure cards you can hide in the media to encourage reading a variety of books or as a media center orientation activity.
Go all out with this! Get a fairy house and put it in the corner of the media, get a mailbox for letters, and set up a bulletin board for kids who've finished their reading logs!