A buns maker prepares buns during the selection contest for the finalists of the Cheung Chau Bun Scrambling Competition in Cheung Chau, on May 5, 2013 in Hong Kong. The Cheung Chau Bun scrambling Competition is a part of Tai Ping Qing Jiao Festival. the Purest Sacrifice celebrated for Great Peace and the day of festivitie ends with guests climbing 20-metre bamboo towers to retrieve &#39;lucky&#39; buns dotted up their length.