types:
colophon
a publisher's emblem printed in a book (usually on the title page)
crest
(heraldry) in medieval times, an emblem used to decorate a helmet
Cross
a representation of the structure on which Jesus was crucified; used as an emblem of Christianity or in heraldry
device
an emblematic design (especially in heraldry)
flag
emblem usually consisting of a rectangular piece of cloth of distinctive design
heraldry
emblem indicating the right of a person to bear arms
totem
emblem consisting of an object such as an animal or plant; serves as the symbol of a family or clan (especially among American Indians)
totem pole
a tribal emblem consisting of a pillar carved and painted with totemic figures; erected by Indian tribes of the northwest Pacific coast
banner,
streamer
long strip of cloth or paper used for decoration or advertising
Celtic cross
a Latin cross with a ring surrounding the intersection
fanion
a small flag used by surveyors or soldiers to mark a position
Greek cross
a cross with each of the four arms the same length
jack
small flag indicating a ship's nationality
Jerusalem cross
a cross with equal arms, each terminating in a small crossbar
Latin cross
a cross with the lowest arm being longer than the others
Maltese cross
a cross with triangular or arrow-shaped arms and the points toward the center
union
a device on a national flag emblematic of the union of two or more sovereignties (typically in the upper inner corner)
flag of truce,
white flag
flag consisting of a piece of white cloth that is hoisted to signal surrender or to ask for a truce