I created a slideshow for my friend's wedding. It was a surprise to them as they haven't watched the slideshow before the wedding. They know I prepared a slideshow but they don't know I pulled a trick. I was very close to the bride. So in the middle of the slideshow, I used our photos instead of the bride and groom's photo.

It was very fun to watch their reaction. At 6:10, that's what happened.

http://www.youtube.com/watch?v=Qx__8zLcpmI