Mandrake wrote:Fill it with good wine and just keep drinking out of it

!!
Rumour had it you just drank from a bottle! Wine, I just drink meths!
magicdiscoman, you beat me to it with the flaming goblet. With all the Harry Potter books and films, it would be good as a childrens prop as a Goblet Of Fire.
Some things, whether for adults or children would be:
Mentalism. Instead of burning the paper in an ashtray, use the goblet. Same effect, but a goblet will give it something that an ashtray certainly can't.
Transposition/vanish/production, with some flash paper. Maybe reveal a previously signed card in a flash in there.
What about adding a small piece of a smoke tablet to make it look as if it is gradually materialising?
Could be used for coin effects.
A bit of IT adds more effects.
Use as a table prop, or in the spectators hand. As it is ungimmicked, there is no problem how much they inspect it. ( Maybe use in their hands just before an unexaminable prop, so they have had chance to see you don't use gimmicks.

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