Carlo Pignatelli, Gabriele Colangelo, Giuseppe Patanè and Massimo Rebecchi are among the designers that have created Christmas trees this year for the charity project, A Hundred Author’s Trees. The exhibition, organized by Sergio Valente and entering its 15th year, will comprise approximately 100 trees decorated by VIPs from the fashion, art and design field. The trees will be on display from tomorrow through Dec. 15 at Palazzo della Cancelleria in Rome, with revenues going to a children’s hospital in Rome.