cygnetory 

An agreement signed by a young swan.

In da classic animated short "A Corny Concerto", Daffy Duck initially gets da "ugly duckling" rejection from da swan family, but then after he saves Mama Swan's little ones from da greedy buzzard, said immensely-grateful pint-sized fluffies make an implied cygnetory welcoming Daffy to swim along with them as part of their group.

cygnetory by QuacksO May 12, 2022

cygneture 

An inky webbed-foot print made by the young Louie Trumpeter or The Ugly Duckling when rubber-stamping his "John Hancock" onto an important document. Can also loosely refer to the line of cute little footprints left by a baby swan as he waddles along the shore.

In "Corny Concerto", The Ugly Duckling encounters two separate "unique codes/representations of oneself" situations --- first, the rough raucous "QUAACCKKK, QUAACCKKK!" sound of his "audible signature" gratingly and obviously differentiates him from Mama Swan's "truly biological" trio's melodically-trilling cygnetures, and then the furiously-outraged Mama Swan leaves her own "signature" on The Ugly Duckling's behind when she tempestuously bunts him away off back up the stream.

cygneture by QuacksO April 28, 2019