cat, catwoman, captain america, captain crunch, carnage, cameraman, captain planet...
Karate Instructor / Participant King Tut King Henry the VIII (or any king you can think of) King Kong kangaroo koala bear
Judicial Branch judge jurisdiction jury
Obliteration and oblivion are synonyms for death. They begin with the letter o.
The Isthmus of Panama --more of a land formation than a landmark, but in Scattergories you can probably get away with it.
Many words begin with the letter n. However, no words in the English language begin with the letters nt.
elephant?
any Apple product, really, haha. iTunes, iPod, iBook...etc.
queen
SUPERMAN, Scheherazade
Noddy / Navy / Ninepin
Skeletor costume starts with s.
I don't know what kind of costume you need... is it for a boy or a girl? Some suggestions would be Alligator Anteater Apple Angel
that's a hard one... try a music fairy or something or an Egyptian mummy
astronout, archeoligist, artist, (think of any jobs starting w/ a and u will most likely be able to come up with a costume) Hope I helped
Answer Kings and knights come immediately to mind. For the macabre, a killer might also work.
Panthers Pumas Pirates
Jackie Chan jet lee jack skeloton Jason (Friday the 13th) Jesus christ jack and Jill Japanese person