Watermelons covered with cartoon pictures on the plastic wrap are being sold at a fruit supermarket in Shanghai. The "Smiling-face" and "big eyed" watermelons are becoming a popular purchase. [Photo: IC]

Watermelons covered with cartoon pictures on the plastic wrap are being sold at a fruit supermarket in Shanghai. The "Smiling-face" and "big eyed" watermelons are becoming a popular purchase. [Photo: IC]

Watermelons covered with cartoon pictures on the plastic wrap are being sold at a fruit supermarket in Shanghai. The "Smiling-face" and "big eyed" watermelons are becoming a popular purchase. [Photo: IC]

Watermelons covered with cartoon pictures on the plastic wrap are being sold at a fruit supermarket in Shanghai. The "Smiling-face" and "big eyed" watermelons are becoming a popular purchase. [Photo: IC]