Here are some good examples of digital special effects that are almost entirely image/video-based, i.e., without CG characters and animation.

Photo-cloning Frame (2009)
Chan Chun Hon, Cheong Shiyong,
Chin Wei Jie
The HANDphone (2009)
Ng Kooi Cia, Ong Yee Shiang
iLoveU (2009)
Tan Shao Chong, Tee Boon Pin,
Xiao Yuzheng
Digital double exposure
Blue screen, blending
Blue screen, blending
     
A Day in School (2008)
Ng Pei Leng, Sim Hoe Swee
Magic Cup (2007)
Aw Xin Wei, Leow Su Jun, Lim Zhen Qin
Digital double exposure
Matting
     
Super Roller Blader (2005)
Feng LiangZhu, Gao Jiong, Guo XinYu
iShirt (2005)
Zhang Xin, Cedric Manzoni, Wang Zhiyu
Transparent Laptop (2005)
Wang Liyan, Ong Shin Kiat, Ha Mai Lan
Blue screen, rotoscoping
Image warping
Blue screen, image warping
     
Magic Glove (2004)
Zhang Xiaopeng, Shan Tao, Ding Feng
Just Do It (2004)
Tan Chek Tien, Ee Xianhe,
Dennis Lim Sher Ee
 
Point tracking, trajectory painting
Blue screen, dynamic scaling
 

Updated: 4 November 2009