Our school instituted the "25 book campaign". Each student in the school (1st to 5th) was required to complete 25 grade level appropriate reading books per year. They each had a reading log with a space for book title,
author, number of pages/chapters, response section and parent signature. Each book had to be documented and verified by either a parent or teacher. Responses varied, but could be a summary, opinion, etc...
We had a kick-off ceremony where various higher ups in the district came (we are in Los Angeles Unifed so we had our local superintendent, board members etc...) 1/2 way through the
year we would have a recognition ceremony for those who ready 12 books. Then at the end of the year, those who read all 25 received a bevy of reading related prizes as well as a district sponsored pizza party!
This was very motivating to the students at our school. And we have been doing it for 3 years now.