Have you seen calligraphy written by a kitchen knife?

Tu Jianchuan was born in 1991. He has been a teacher for 5 years. Since he was a kid, he has developed a keen interest for calligraphy. With his hardworking and solid foundation in calligraphy, he developed a unique skill of using items like kitchen knives, green Chinese onions, spoons etc. to write calligraphy. He can also do sculptures on vegetables.