I’m surprised you didn’t mention the episode of "The Big Bang Theory’ where they addressed the naming of the Fig Newton.
Penny suggests it was named after Sir Isaac, “because he was one smart cookie.”
But Sheldon, of course, makes it clear it was named after a town in Massachusetts.
One of the great trademarked names, Oreo has several advantages in that it is short, easy to pronounce & spell, and means nothing in and of itself. “Fig Newton” is two words, and though it might get me in legal trouble to call my candy the “Newton Mint Patty”, I could call my computer program “Newton Anti-Virus” without too much hassle from my lawyer. Oreo, like Kodak, could never be used to name any other product. I’m sure if you had a sizeable fortune to pay enough trademark lawyers, you could call your new line of footwear the “Coke Sneakers”, but you would probably only have a small fortune at the end of the trial.
The pedant in me wants to remind you that “fig” is an attributive noun.
Although…
Now that you mention it, I really wish somebody would come up with a recipe for something called “figs Newton.” Maybe something unpredictably sour, in honor of Sir Isaac.