I'm listing this as a common "round green cup" possibly made by Fire King. 10 are available, all in mint condition. They measure about 3.3" across the top and are 2.4" high.
Fenton made Pekin Blue originally from 1932-33. This 10" bowl (2" high) with triple dolphin handles is in excellent condition. All Pekin Blue items are considered scarce due to the great difficulty in production -- even when the color was reintroduced in the 1960's and the 1980's. Fenton originally called the color turquoise.
Federal made Diana from 1937-41. This covered candy does have two flea bites on the lid -- trust me, very minute. This item is about 6.5" at the widest.
