All shades of blue and aqua colors and the trident. There might be other images associated with the sea - a conch, a starfish, a fish, a dolphin, a wave, an octopus etc which can be found in artwork depicting him, but they can be used for any sea deity. read more
Poseidon was one of the children of the Titans Cronus and Rhea. He is known as Neptune in Roman mythology. He is strongly associated with water, horses, and earthquakes. There are several myths surrounding his birth, but one myth states that on his birth, his father swallowed him. read more
All royal symbols, such as crowns and scepters, and the colors gold and purple; also the lightening bolt (his weapon) the golden eagle and the oak tree. Hera: Same royal symbols as her husband, Zeus; also the golden cuckoo, peacock, lion and cow (symbol of motherhood). read more