Geoff Watts (of “Scrum Mastery” fame) has created a great source of inspiration for scrum masters: When you’re stuck, whip out your deck of Scrum Master Coaching Cards, retreat to a quiet corner and reflect on a randomly drawn card. Today’s 1-pager features 4 cards. You can order a full deck here.
PS: There are also decks available for Product Owners and Retrospectives.