We talk about Scarabs Seals and Bullae.  Seals are the objects, often rings used to mark a document with the ancient equivalent of a signature, scarabs, can be seals but are usually carved in the shape of a scarab beetle. Scarabs also have names of powerful Egyptian kings on them and were used for good luck charms. (Not really going to talk about scarabs much) Bullae are small dabs of clay that were used to seal documents and other things. They have the impression of the seal on them. 

Why care?  Seals and bullae give us attestation of the names of biblical figures. Most recently an official from the court of Josiah, was found in Jerusalem.  Other Biblical names found include. Hezekiah, Jeroboam II, Ahaz, Isaiah, and Baruch, among others.