Runner-up of the 2017 Target Hackathon -- Designing a Mobile Application for Left Behind Children in China. Awarded second-place prize of ¥10000. The idea of the application is to facilitate and encourage communication between left behind children and their migrant parents through sending multimedia greeting cards -- these cards can have handwriting, photos, videos, and audio attached. An animated paper crane delivers these cards and encourages continued dialogue between the child and the parent.