There is a routine on my website called Courage Stone that can easily be adapted to an OZ theme by focussing on the attributes of "Courage"," Heart", "Intelligence", and "Spirit" (for Dorothy). The (quite unpolished) routine shown is performed using my Apogee wallet but I am soon releasing a much better polished "No Batteries Required" version. I'll be presenting the battery-less version at ECSS2; it introduces a nice new twist on equivoque not used in the video clip. PM me if you want any more details on the routine.
https://www.youtube.com/watch?t=12&v=VgSglNFZRFQ


All the best,

Christopher

Maybe this is a reach, but I wonder if one could use Ed Massey's Squeeze Away Block, and tell a story of an Oz villain trying to destroy the yellow brick road. You demonstrate how the yellow bricks are gradually eaten by the dark forces until they completely vanish. However, there is hope...someone greater than the evil will be coming to Oz to save it. (Here you could pull the vanished yellow block out of a picnic basket to represent Dorothy, a rumpled top hat to represent the Wizard etc.).

I've always loved Squeeze Away Block. Done correctly, it looks truly magical...but the trick is over too quickly. This storyline could make the effect last a little longer.