Penworthy Prebound Book: Yoga for Kids: Simple first steps in yoga and mindfulness by Susannah Hoffman
Thinkfun Yoga Spinner game for 2-4 players and has 54 yoga pose cards
Thinkfun Yoga Dice game for multiple players: 6 six-sided Yoga Pose Dice, 6 Pose tokens, 1 six-sided breath die, 1 Focus token, Yoga Mat Game Track (2-3 players; short track, 4-7 players; long track), Game-Go bag.