Film 21/52 - Green Ball Magic

Youtube link.

This is my first experiment with a new special effects pack I bought for Final Cut Pro.  The film is made entirely of still photos which are then morphed together to produce the "movement" effect.  I had originally planned to make the ball reappear then transform into a juggling club, but had underestimated how long it would take to manually program each morph transition. 

I'm planning to do another video using this kind of effect in a juggling video but i'm not sure how.  Any suggestions?