I put this together this year because my class has been really struggling with this. The nice thing about this "project" is that the bully gets zero attention but the person who stopped the bullying gets classroom recognition and praise.
This will take about 15 minutes of preteaching...
What are some acts of bullying we have been seeing?
What are some things we can do as bystanders?
Also, lay the ground rule that the bully cannot be named...only the "bully blaster" or "bully blocker".
This includes several covers to choose from and the inside pages. Use the cover and the inside pages to create a binder students can record in. Go over it and discuss every so often as your schedule allows.