What is are some star symbols I could use for these characters?

I'm creating an a story with the whole evil twin vs good twin theme.Both twins are recognized by a star that's on their chests.I want a star that has a negative meaning and a positive meaning.However if such a star doesn't exist then could you tell me of two different stars,one with a positive meaning for the good twin and one with a negative meaning for the evil twin.





Thank you for your help!|||Do you mean horoscope star signs or actual names of physical stars that exist in the heavens or do you mean different visual styles of stars e.g. star of david, 4 pointed star etc.





You may need to provide some additional information.





However, I was thinking that you could make it up. I mean Cain and Abel from the bible are typical good/ bad brother theme. And you could make up names for the stars on the bad/good brothers chest because that would be acceptable given the fact that your creating a story.





Also have you heard of romulus and remus They were the twin wolves that founded rome involved in roman mythology. So you could research mythology not necesarily greek or roman to get ideas for the twins star names.





you could also get some real stars in the sky names of two planets that circle each other one in the dark more often and the other in the light more often.





Thats all I have at the moment. Good luck.|||what about a 5 point star for both but the bad twin's star is upside-down or something like that