Quick rules:
1). Not something you wanna be ("VELOCIRAPTOR"!), but something that genuinely reflects your personality, quality of life, etc.
2). Something living prefereably ("I wanna be a rock!")
I figured that im highly sarcastic and use dry humor extensively, so I'd end up being....
A cactus. Dry humor, sarcastic/ironic in the sense im full of water, but stuck in a desert...Rina said it was because I was a prick