https://www.kmart.com/qualeap-amber-sensory-chew-necklace-for-kids-girls/p-A069331218
Its a sensory chew toy thing. I'm not diagnosed with mental disorders/illnesses, but I chew on the collar of my shirt and on random things I find. Having one of these could also stop me from boredom eating :,) My mom said she'd try to get me one :>