Don't worry, that doesn't sound stupid at all! I think it's like Kakashi's but I'm not quite sure. It looks like Kakashi's to me if that helps you at all though.
Sorry I couldn't be of more help! By the way, I think doing a younger Kisame is a great idea, especially because NOBODY does it!! Good luck!!
Cosplays in progress:
Canada (Matthew Williams) [Axis Powers Hetalia] 85%
Gilbert Nightray [Pandora Hearts]
Roxas [Kingdom Hearts II]
Lovino/Romano (South Italy) [Axis Powers Hetalia]
Kyouya Ootori [Ouran Highschool Host Club]
Pikachu [Pokemon]- Anime Boston 2010
Belle [Disney's Beauty and the Beast]
Merida [Disney's Brave]
Rapunzel [Disney's Tangled]
Hungary [Axis Powers Hetalia]