Youtube的標誌-雷射製作

http://tw.youtube.com/watch?v=1omduN6xllI
http://tw.youtube.com/watch?v=SRZCUQE01kg
http://tw.youtube.com/watch?v=jEh-1RBqwb0
http://tw.youtube.com/watch?v=GA09935C7zM
http://tw.youtube.com/watch?v=A0-cC4Apo4w
http://tw.youtube.com/watch?v=_T7F4YIjuAw
http://tw.youtube.com/watch?v=gy-Vbysbzbw