Ringer, as in a fake stand-in for something of greater value?

It's not surprising to learn that GOLD & SILVER will have an issue that deals with the subject of GOLD, which is THAR. But it does remind you that THAR is 19th century term with two distinct applications: in the case of a whale, THAR she blows; in the case of gold, it be in THEM THAR hills.

It can be used in piractical contexts as well.

Playing games with gold-and-silver horseshoes wasn't ostentatious enough. There had to be a jewel atop the post.