Book Review: Knockdown Knits - 30 Projects from the Roller Derby Track by Toni Carr (Blogcritics.org) Tue, 12 Aug 2008 12:47:13 GMT Featured patterns include the “Hey At Least It Wasn’t Your Leg” Arm Sling, the Hangover Kit, and the Baby Got Back Bloomer Panties. Knockdown Knits by Toni Carr is as much a roller derby book as it is a knitting book. Toni Carr is also known as Joan of Dark when she is pummeling skaters in the rink. She and many of her derby leaguemates are avid crafters – knitting and crochet among those ...