Backpack Hangers also known as Collector Clips or Danglers, are keychains based on the Five Nights at Freddy's characters, designed by the Japanese company Evolete and released by Just Toys. They were first released around late 2015.
List
Series 1

Series 1 Key Art
The first line consists of Freddy Fazbear, Bonnie, Chica, Foxy, Golden Freddy, Toy Bonnie, Toy Chica, Mangle, Balloon Boy and The Puppet. The series was re-released a year later, dubbed series 1.5, with a new 11th clip, a metallic-gold Golden Freddy chase variant and a new design for Balloon Boy.
Series 1.5
After the release of the initial series, a rare chrome Freddy was sold exclusively during GameStop Con 2016. It was not part of the original blind bag series. A 3-pack was exclusively sold during San Diego Comic-Con 2016. The set comes with a metallic-gold Freddy Fazbear, Foxy and Balloon Boy with glossy-black eyes.
Plush Series
A line of plush collector clips consisting of Chica, Freddy Fazbear, Bonnie, Golden Freddy, and Foxy.
Series 2
The second line consists of Nightmare Freddy, Nightmare Foxy, Plushtrap, Nightmare Mangle, Nightmare Fredbear, Nightmare Bonnie, Nightmare Chica, Springtrap, Jack-O-Chica (Chase dangler), Jack-O-Bonnie (Chase dangler), Nightmare Balloon Boy, and Nightmarionne.
Collector Tin Set
A tin set containing a backpack hanger, a dog tag and 4 packs of trading cards. There are 4 variants, Freddy, Bonnie, Foxy and Mangle, each with a metallic paint finish.
Series 3 - Sister Location
The third line consists of Circus Baby (2 variants), Bidybab, Ballora, Minireena (2 variants), Funtime Freddy, Funtime Foxy (2 variants) and Ennard (Mystery Clip).
Series 4 - Security Breach
The fourth line consists of Glamrock Freddy, Glamrock Chica, Montgomery Gator, Roxanne Wolf, Vanny (with a glow-in-the-dark mystery variant), and Vanessa.
Trivia

Balloon Boy's original design
- When Balloon Boy's clip was first released, his design originally featured a mechanical right hand, a broken sign, and a missing balloon. The Series 1 clips were re-released with Balloon Boy's more accurate design a year later.
- Despite appearing as chrome silver in the promo image, the Gamestop-exclusive Freddy clip appears more as chrome gold.
- Series 2 has a lot of erroneously named clips. On Just Toys official website and other online shops like Wiz Toys, Plushtrap and Springtrap's names are switched, Springtrap being named "Plushtrap" and vice versa. Meanwhile Nightmarrione is named Nightmarionette.