Ya I have made fem seeds before. I used a chemical called Tiresias mist. I believe it is just colloidal silver, works great. You have to use it on a female plant and pollinate another plant with the fem pollen. I have selfed a plant with its own pollen and no one has complained about herms yet but I did not trust it enough to grow them out my self and gave all the seeds away. I only grew out the other 2 plants I femed with the pollen. It was pretty funny I told the dispensary I got the clones from I was going to make seeds and they just kinda looked at me like I was stupid and were like ya that would be great. Turned I think my total investment including soil, clones, spray lighting was probably under $100 after all was said and done and I ended up with about 500 perfect seeds from the 2 plants I hit with the pollen besides the plant I got the pollen from. To my surprise though one cross turned out amazing and 1 turned out to be crap.