I have seen this design several times but never took more detailed look. The idea behind it is great: fill the bomb with plant seeds and drop it on soil somewhere. Since the case is 3d printed in water solvable and bio degradable PVA plastic, the outer shell will dissolve and plants will begin to grow. It is F-bomb by tbuser.
On Thingiverse:
http://www.thingiverse.com/thing:12812
Filckr photo gallery:
http://www.flickr.com/photos/tbuser/6266697931/in/set-72157627984607320/
Other seed bombs:
http://www.guerrillagardening.org/ggseedbombs.html
On Thingiverse:
http://www.thingiverse.com/thing:12812
Filckr photo gallery:
http://www.flickr.com/photos/tbuser/6266697931/in/set-72157627984607320/
Other seed bombs:
http://www.guerrillagardening.org/ggseedbombs.html