My plan was to take 2 or 3 clones from the same mother plant and flower them 2 to 3 weeks apart from each other. Spray one of them with collidal silver until it hermies. Then collect feminized pollen. Then take a paint brush and paint on the pollen to the other flowering clones. Then hopefully they seed up.
Since there's no male present I should have me some feminized seeds, correct?
Yes.
I'll add a tip which I hope you find helpful, some people spray the female plant they hope to get to produce pollen on the node sites, rather than randomly spraying leaves etc.
I don't know for certain what the scientific reason is, but I gather it produces better results there than wasting the colloidal silver on the stem, branches and leaves, since the bud sites are the same place the male flowers will appear. It's worked for me, so I continue doing it that way.
Also, a single girl in flower can be pollinated at several different sites if you want to get freaky and use colloidal silver induced pollen from two or three etc. different strain plants to pollinate one plant on several different branches, thus creating several different crosses...all feminized.
Once pollen is applied to the pistils of the receiving female plant, a colored wire bread wrapper twisted around that branch and writing down somewhere the date when pollen was applied and which strain the pollen came from can be useful. Let your seeds develop and don't take them to soon, since immature seeds won't pop and just waste the bud. Pollinate a healthy lower branch or two and then when you harvest the top bud, leave enough green on the lower part of the plant to keep it alive until your seeds have matured. Some come in around a month, but longer is probably better. Patience.
Pollen chucking is fun. Be sure and let us know how it goes.