Just go to Home Depot and get a key copied. If you are looking for a cool key, get one of those blank switch blade type keys that pop out when you press a button. Those are pimp, but they cost like $100. I remember seeing some one Ebay for a Celica for like $35 though. Just a thought.
And by the way...Home Depot will copy your car key. They aren't supposed to legally, but they should. I used to work there, so I just go in there and use the machine myself. Not brain surgery. Costs like 2 dollars for a blank key there.