Eventually, Feanor decided to improove his spray, as it lacked power it needed. Thus, he worked and soon, the fearsome liquid was equally abominable to any ainu to come in contact with. Alas, poor messenger, sent to deliver an order to Feanor to attend a festival, as he was the one to suffer the fruits of Feanor’s work. Feanor took the formula with himself to Beleriand, but it was lost in flames. Rumors say, his sons seeked to restore it.(Feanor invited chemical weapon to deal with trespassing ) J.R.R. Tolkien, on the creation of “Maia-B-Gone” and other lost aerosols of the Noldor.