I got mine from Milanoo.com when I cosplayed as Gaara.
I don't know how realistic you wanna get but these come in black, blue, or red (your choice) and have all the villages plus rogue/Akatsuki (symbol w/ slash through it). They're a decent size, meaning not kid size, and have the symbol engraved in the metal as opposed to being painted on. They run somewhere around $3 if I remember correctly.
UPCOMING CONS & COSPLAY PLANS:
Anime Expo 2017 (ideas):
Amy - Suisei no Gargantia (0%)
Sasuke Uchiha - Naruto Shippuden (100%)
PAX West 2017 (ideas):
Liliana Vess - Magic: The Gathering (0%)
Rayne - Bloodrayne (0%)
Kumoricon 2017 (ideas):
Zuko - Avatar: The Last Airbender (100%)
Sakura Con 2018 (ideas):
Kitana - Mortal Kombat X (0%)
Yuki Nagato (bunny suit) - Melancholy of Haruhi Suzumiya (50%)
Kagura - Inuyasha (50%)