The Chinese cube brand DaYan® (also known as DY, Big Goose, DaiYan, and TaiYan) was designed by speed-cube designer Daqing Bao. “DaYan”is the phonetic transcription of his username “大烟头”. The logo on DaYan® cubes uses the last character “头” Their most popular models are GuHong and ZanChi. The ZhanChi model is probably the most commonly used by speed-cubers, as Australian speed-cuber Feliks Zemdegs used this cube to get one of his previous world records. The brand was making a comeback in the speed-cubing panorama with the TengYun model as well as with the GuHong V3 M.
www.dayancube.com