OK, I give you zee zee zee, but the other ones are just extrapolations from previously-existing onomotopaeia, which I don’t think are the same thing.
–Cliffy
I’m partial to “Woman Using Typwriter” (MAD #119. Jun 68, Page 48).
Hmm…I just noticed that list is missing “PAF” for the sound of a balloon popped by a boy wielding a peashooter.
Actually, I don’t see a listing for any of his Inside Front Cover strips.
My mistake, they do have the Inside Front Covers. I missed them with the Find box.
They are indeed missing the one I was thinking of: “One Day in the Park” (MAD #137, Sep 1970, Back Cover).
You people are sad. Comics aren’t worth all the time, trouble and dedication you put into them. Memorizing sound effects, making huge indexes of individual artists’ onomotopaeic decisions…geez.
Obviously, the better option would be to devote yourself to Cowboy Bebop. Then you only have to deal with “bang”. 
For the irony-impaired, the first paragraph was a joke. I like comics too. Don’t hurt me.
Get the torches!