In 2014, Rokudenashiko created a Manko-kayak (vagina boat) using 3d technology, which allows objects to be scaled up or down. Using this technology, the size of the Manko can be moved freely.Since the beginning of her Manko art, Rokudenashiko has wanted to turn the Manko with its dark and obscene image, into something like an industrial product that would fit naturally into people's lives. Especially after the birth of her son, she wondered if she could avoid the abnormal aversion to the Manko if she could familiarise herself with it from childhood as a familiar and natural part of her life. She started to make Manko toys as part of her son’s early childhood education. This miniature car is designed to be interchangeable with LEGO blocks.