A German museum has put on display a copy of Vincent van Gogh’s ear that was grown using genetic material provided by one of the 19th century Dutch artist’s living relatives. The Center for Art and Media in Karlsruhe said artist Diemut Strebe made the replica using living cells from Lieuwe van Gogh, the great-great-grandson of Vincent’s brother Theo. Using a 3D-printer, the cells were shaped to resemble the ear that Vincent van Gogh is said to have cut off during a psychotic episode in 1888. The U.S.-based artist said the ear was grown at Boston’s Brigham and Women’s Hospital. Convincing Lieuwe van Gogh to take part was easy. “He loved the project right away,” said Strebe. The exhibition, at which visitors can speak into the ear through a microphone, lasts until July 6.