The incantation bowls will have come from Iraq. If you want to see some more of them, go here. And for many PaleoJudaica posts on such bowls, run "Aramaic incantation bowls" through the blog search engine.
Reportedly the IAA thinks that the decorated ivory objects come from the north, perhaps Samaria. Other similar object have been found there. The IAA would know better than I. Decorated ivory plaques have been found in Samaria, Syria, and Iraq.
UPDATE (9 March): More here, and note the update.
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