Necklaces (or key-chains) Jojo’s were distributed inside of Jojo’s red packs and were sometimes included in other merchandises like the Banana bag.
Made by (or ordered by) LAOR Toys, some Israel exclusive Jojo’s also have key-chains variants, in metal (pictured below) or in plastic (plain or transparent).
The metal Jojo’s (silver or gold) are referred as “Medals”.
A promotional video showcasing the medals and necklaces can be seen below: