Mockingjay Pin

Katniss's iconic Mockingjay Pin from the film was handmade by jewellery designer Dana Schneider. She only made four, three of which are owned by the studio and the last that she kept herself.
Sadly she's not licensed to sell them but you can get some fabulous bits of bling from her Etsy shop, and she's made jewellery for over 40 films in the past, including X-Men, Transformers and The Girl with the Dragon Tattoo.