Rugged & Wild:
* Koda (short for "koala")
* Ashton (meaning "ash tree town" - koalas live in eucalyptus trees)
* Grizzly (a nod to the bear-like nature)
* Boomer (after the Australian slang for "koala")
Cute & Playful:
* Blossom (for their love of eucalyptus leaves)
* Pip (short and sweet)
* Fuzzy (referring to their soft fur)
* Cuddlebug (for their adorable cuddling habits)
Mysterious & Unique:
* Eukalyptus (after their favorite food)
* Gumleaf (a more poetic name)
* Shadow (for their grey fur blending with the tree bark)
* Ember (referring to their warm, cuddly nature)
Other factors to consider:
* Gender: Some names might be more suitable for male or female koalas.
* Personality: Does your koala have a mischievous, cuddly, or adventurous personality?
* Appearance: Does your koala have any distinguishing features like unusual fur color or markings?
Ultimately, the coolest name for your koala is the one you find most fitting and endearing!