Centennial Merchandise Want to show your Oakland Tech pride with Centennial Swag? Buy Your Centennial Merchandize at these upcoming events: Book Launch! Saturday October 18th, 2-4:00 in the library. Homecoming Rally! Friday October 31st, after school. Centennial Faire! Saturday November 1st, 11-5:00 on the lawn. PTSA pre-holiday sale, November 10th in the library 6:30-7:00, before the PTSA general meeting. Centennial Talent Show, Sunday, February 8th, 2-4 in the OT Auditorium. Centennial GALA! Sat., May 23rd. Proceeds will go to career support and tutoring at Oakland Tech.