Lens flares are terribly overused and cliched but I always loved the look and PDPro has some great animated lens flare effects. This image started out as some random sketches that I did to test out some built in brushes. I then took that image and manipulated it, then did some simple animations that eventually became this nebulous space effect.
This piece of software continues to amaze me, though I continue to wish that it had opaque layers rather than the clunky default multiply mode. You can get opaque layers but you've really got to work at it and it really slows down any creative workflow.
Having said this, I still find PDPro to be an incredible bargain and it's paint and animation functions are pretty remarkable.