Other crests have been found which I have not yet been able to identify with any individual O’Donoghue sept or family.
O’Donnoghue (Iri.)
The crest: On a mount, vert, a peacock, az., spotted, or. Source: Fairbairn’s Crests of Britain and Ireland 1860
O’Donochoo (Iri.)
The crest: The traditional style is an arm, in armour, embowed, in hand a sword, entwined with a serpent, head towards handle as shown for The O’Donoghue of the Glens and O’Donoghue Mór.
Variants of this are shown as (1) an arm, in armour, embowed, in hand a sword and (2) an arm, embowed, in hand a sword, entwined with a serpent, head away from handle at top of blade hanging down.
These probably were the differences adopted by cadet or subsidiary lines of the main families.
Source: Fairbairn’s Crests of Britain and Ireland 1860