* The invisible rabbit is a reference to the 1950 film [http://en.wikipedia.org/wiki/Harvey_%28film%29 Harvey].
* The invisible rabbit is a reference to the 1950 film [http://en.wikipedia.org/wiki/Harvey_%28film%29 Harvey].
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* A "Pooka" is a fey creature from Celtic folklore. It is a shapeshifter with a rabbit being one of its common forms. The invisible rabbit in the above mentioned movie and play, [[Harvey]] was declared to be a pooka