Just stumbled across this old thread + found it very interesting. So if one were to sell this, what would be the best way to package this so it  retains its scent ? If Im understanding this correctly, you take salt of any kind + add FO - what is the best ratio to try. You people seriously  AMAZE me - the things you come up with Im going to try this with scents I won't otherwise use. So those of you who tried this are  happy with the results. Glad I found this old thread