Apparenlty named for the black trim on the marigold iridescense. Seen in a variety of shapes, many of which have a sort of crackled or Tree of Life surface. There seems to be no agreement as to who made these items. This decanter set sold in 2014 for $140.

Other items reported as Halloween were marigold spittoons that sold for $105 in 1997 and $85 in 1998. In 2003, a bulbous 5 3/4-inch tall vase in marigold sold for $18.

In 2016 a decanter sold for $45.

This marigold Halloween vase photo was sent to me by Kate and Bill Lavelle in 2020. It was found some years ago at a local antique fair in Lake County. Illinois.
This tumble up (a small water jug and tumbler that fits over the top) sold in 2018 for $95. There was a pinpoint on the tumbler.
These 8 1/2-inch tall candlesticks have a 4 1/2-inch base and 4-inch bobeche top. There is a crackle or tree bark type surface in marigold with black bands around the neck and base. Because they are hollow they may also be used as a vase. Courtesy of Ed Kramer.

In 2016, a pair of 8 1/2-inch candlesticks sold for $55.

This covered bowl is from Ardonna Bucher. An excellent example of a shape I'd not heard of before.

Updated 6/7/2020