The main shrine in Tamatsukuri is the Tamatsukuriyu Shrine. The three main kami are Kushiakarutami, Onamuchi (Okuninushi), & Sukunahikona. The latter two are well known, but this was my first encounter with Kushiakarutami, who was the priest Tamasuri (he who makes the jewels) who enshrined Okuninushi following the ceding of the land to the Yamato, Kuniyuzuri.
Kushiakarutami is also equated with Haakarutama and Amenoakarutama, the first being the kami that gave Susano the jewels he used in his "contest" with Amaterasu, and the second being the kami that produced the jewels that were hung outside the cave that Amaterasu used to hide away in. The common feature of all these kami is the production of "jewels", the comma- shaped stones known as magatama. Tamatsukuri was a center of magatama production and the unusually shaped treasure house of the shrine has many of the objects found in archeological digs in the shrine area.
Nowadays the shrine is most well known for its "wish fulfilling stone" (negai ishi). Nowadays you can buy small stones from the shrine office and hold them against the almost spherical stone and have its power transferred.
There are numerous secondary shrines within the grounds including an Inari, Konpira, Susa, a Tama no Miya, Several other shrines I can find no information about, Kikakashi, Fukutoku, & Sanatama.