I Need Help Finding Any 2010 Chevy Camaro or Mustang Convertible 2010!!!!!!!! I'm Very DESPERATE?

I Looked at Hertz, enterprise, dollar, thrifty, avis Alamo... All the car rentals in the state of michigan no one has any cool cars for my PROM this is special. Can someone help me i wud greatly appreciate it!! BTW I Live in Michigan