Probably the first JavaFX / Java application called "Ensemble" is available directly from the Mac App Store.
[The application was taken from the store to fix some glitches, but it should come back soon]
Tip: if you are a developer, there are easier ways to get the Ensemple running on your Mac :-)
NEW 2016: Java EE 7 Workshops: Bootstrap, Effective, Architectures, April, 4th-6th, Munich's Airport
On demand workshops: Java EE 7 Bootstrap, Effective Java EE 7 and NEW: Java EE 7 Testing are available for streaming