Interesting motifs is the name of the game with ancients. Part of the fun is discovering them all and then finding that perfect example to fit your collection. How about a depiction of the Hindu god Shiva (Siva) with 4 arms and a Tamgha below. Won this morning from CNG Or Asclepius riding a winged serpent?
The Abduction of Persephone. LYDIA, Nysa. After 133 BC. Æ (18mm, 5.78 gm, 10h). Obv: Head of Persephone right, poppy behind neck. Square countermark on nose. Rev: Hades in galloping quadriga right, carrying off struggling Persephone. Flower basket falling left from hands of Persephone. A valley near Nysa was the site where, according to the myth, the abduction happened. SNG Copenhagen 306; BMC Lydia 16.
@Finn235 has already pointed out how Sasanian coins usually show a reverse of a Zoroastrian fire-altar with two attendants, but he didn't mention that sometimes the god Ahura-Mazda makes an appearance in the flames, as on this obol of Shahpur II (309-379 AD):