Cornucopia.

Cornucopia (Αμαλθείας κέρας) (cornu copiae), or horn of plenty was a symbol of Plutus (Πλοῦτος) (Ploûtos), god of wealth in Greek mythology.

It was a symbol of abundance and wealth. According to legend, the cornucopia was the horn of the goat Amalthea (Ἀμάλθεια) or Achelous (Ἀχελώϊος) (Ἀχελῷος) (Akhelôios), who turned into a bull.

Many gods and goddesses were represented with a cornucopia.

Also, this symbol represented on some coats of arms.

Melpomene.

Melpomene (Μελπομένη) (Melpoménē) was the Muse (Moûsai) of tragedy in Greek mythology. Zeus (Zeús) was her father and Mnemosyne was her mother.

Tragic mask was Melpomene's symbol.

Other Muses (Múses) and children of Zeus were her siblings.

Achelous (Ἀχελώϊος) (Akhelôios) was Melpomene's consort. They had children called sirens (Σειρήν) (Seirḗn) (Σειρῆνες) (Seirênes).