Zeus's Chalice
In the Young Hercules (Movie Pilot), the chalice was made of green crystal. It was kept within Ares's treasure cave. Hercules steals the chalice, waking up a Giant Snake that is "Ares's Security System", which he has to outrun. When the lid was knocked off of the chalice in the middle of a villiage marketplace, a tornado rose from the chalice, nearly destroying the marketplace. It is unknown what happened to the chalice, but it was last seen in Hercules's possession.
In the episode 1.01 Treasure of Zeus, the chalice is said to be made by Zeus as a wedding present to Hera. It is made of ruby-red crystal and is kept inside a cave up in the mountains that is dedicated to Hera. Hercules, Iolaus, and Jason venture into the cave, past the booby-traps, and into the main room to steal the chalice. Inside the chalice is a small amount of liquid that appears to be water, but when the liquid is dumped out of the chalice, it ignites into a fireball that nearly roasts the boys as they run out of the cave, and the fire releases the Phoenix guarding the cave to attack the boys come morning's light. Iolaus and Jason eventually return the chalice to Hera's Cave in the episode 1.03 What a Crockery.