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That's F for Flower. A PVA water soluble weapon of mass foliation. Otherwise known as a Seed Bomb deployed by ninja gardeners to sew seeds in hard to reach places. See Also: http://www.guerrillagardening.org/ggseedbombs.html
Sure, there are cheaper and more efficient ways to do this... but... pfft... The idea is to stuff it with some compost and seeds and then throw it somewhere that you think could use some color, but you either can't get to it or it's where people wouldn't appreciate seeing you digging around. Then wait for mother nature to dissolve the shell and make some magic.
This of course requires water soluble PVA http://www.makerbot.com/blog/2011/02/21/makerbot-introduces-water-soluble-3d-printer-filament/ since you don't want to wait a thousand years for ABS to go away. I'm not even sure this will work, however PVA is supposedly bio-degradable http://www.eliteanglingproducts.com/PVAEnvironment.asp and is used as a seed coating http://www.celvol.com/sekisui/sek_seed-coating.htm so hopefully it's safe. However, I will assume it's not safe, I'm stupid, and advise you not to do this. Also, I am not responsible if you get arrested for defacing someone's private property with beautiful flowers. :)
However, I'm going to test it anyway (did I mention I'm an idiot and you shouldn't do this?). Unfortunately it's not the best time of the year to try it, but I loaded one and sat it in a pot outside. I also sat one in a pot indoors that I'll run some water over whenever I water my other plants to see how it dissolves naturally over time and if anything grows out of it. I also threw some of the seeds into another pot just in case these old seeds are no good and to compare the growth. SCIENCE!
Alternatively, you could print this in something other than PVA and just use it like a little box to store things in...
You can easily edit the openscad script to make a super sized version that is twice as big if you want to like, plant a tree or something.
Note: this openscad script uses Schmarty's awesome Inkscape to OpenSCAD Polygon plugin! https://github.com/martymcguire/inkscape-openscad-poly
F-Bomb by tbuser is licensed under the Attribution - Non-Commercial - Share Alike license.
So what's this mean?
We're sure tbuser would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!