We sprouted organic popcorn as a test last month. So, there's that. Not sure how viable that would be though. If one can get hold of actual wild plants or things from locally grown non-gmo grown farmers markets they should be able to harvest seeds. For example, you can cut (non-sprayed, non-gmo) potatoes into quarters and plant them. Also, you can put celery ends in water and sprout them but they will be more bitter. Luckily this is all just a stress test because if it was the real thing it wouldn't matter because the feral niggers will come and steal from your gardens and try to kill you anyway.