Digimonk Sound Lab has released Balloon Drum, a free sample pack created from the sounds of a balloon.
It was previously available as a Reason ReFill.
The developer notes - "The environment of Kontakt 4 is quite different with Reason. So the samples layers and structures and performance were tuned very different. Most of the patches are brand new tones! "
Balloon Drum is available as a free download for Kontakt 4 and Reason.