Jazz Up Your Photo Presentations
Any presentation that is filled with photos, such as a graduation presentation for school can make use of Opazity's out of focus transparency effects.
This example shows how you can keep the audience guessing and then "morph" the photo from a young boy to the grade eight graduate. I used Opazity to make the blurred transparency and then combined PowerPoint animations to make the photo appear to "age" before your eyes.
This example video shows you the effects of aging students from preschoolers to elementary school graduates. (Note - it may take a minute or two to download completely to your computer).
This same technique can be used to create quizzes and other guessing games in PowerPoint.
More on quizzes in PowerPoint.