This year I have some students on my caseload who are constantly seeking oral input or who are intense chewers- fingers in their mouths, licking their hands, biting crayons/markers, putting toys and non food items in their mouths, etc. Most of my students have access to chew tubes, T tubes or similar items, but they also get put down on surfaces, dropped on the floor or thrown. I just came across Chewigems, and I like this option for kids who need to chew. They have necklaces with pendants, bangles, accessories and fidgets. Resistances for 3 types of chewers, and accessories to help keep chewing items clean... Check out their website here: https://www.chewigemusa.com/
Amazon also has a variety of chewelry and chewing options available:
www.amazon.com/s/ref=nb_sb_ss_c_1_6?url=search-alias%3Daps&field-keywords=chewlery&sprefix=chewle%2Caps%2C177&crid=2ZLNP7OOGLJY3&rh=i%3Aaps%2Ck%3Achewlery
And of course, one of my faves, the Therapy Shoppe has chewies and chewy jewelry available:
https://www.therapyshoppe.com/category/1088-chewies-chewy-jewelry-autism-chews-sensory-oral-motor-tools