Christiaan Verwijs and Jasper Alblas facilitated a workshop to kick-start three scrum teams. How they did this, you can read in this article: https://medium.com/the-liberators/we-kick-started-three-scrum-teams-with-this-awesome-string-of-liberating-structures-19b4a409cb8d
Facilitation Toolbox
A nice Trello board from The Liberators that holds a lot of cool ideas to help you facilitate as a Scrum Master. Find it here: https://trello.com/b/oC3oBEvY/facilitation-toolbox