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I really don't understand the point of your etymology lesson. "Cu-", it has been argued, is a root word for that which is sexually feminine. But "C*nt" is a slur. Most of the words you listed, while they may (or may not; this isn't a universally accepted theory) also be referencing feminine attributes ("Coney" is a female rabbit, eg), they are not, in general usage (ok, except for sometimes "Queen"), insults!
I can't imagine saynig to a black person "Don't forget, "nigger" has the same root word as "night!" See? It's not insultig!"
And at any right, you could invent your own slang any time you feel like it. (A g-rated example is Theo Huxtable and his buddies calling attractive women "burgers" on "The Cosby Show"), but if you mean "a worthless being useful only for forcible sex" when you say "burger" or "spoon" of "foo-foo" ... it's ugly.