Holiday Treasures In November 2004, Stuff Creators designed and created a unique holiday tree for the Holiday Treasures project, benefiting the Texas Children's Hospital Cancer Center.       Macromedia Site of the Day The Digital History Timeline was chosen as the Macromedia Site of the Day, December 13, 2003.       Universal Principles of Design Stuff Creators collaborated with AMSI and Kritina Holden to write Universal Principles of Design, available in October 2003.