Bob Bartholomay wanted to get a reference to a FrameworkElement that was created dynamically and animated but realized that he can't get such a reference. The solution of the problem is called Attached Properties.
I had a need to create FrameworkElement(s) dynamically, animate them, and then get rid of them. I was surprised to find that while you have the (say) DoubleAnimation as one of the parameters in the Animation’s Completed handler, there’s no way to find out what FrameworkElement that Animation just animated - I want to remove that element from the visual tree.