ebay??? But watchout a buddy of mine got some M3 styles mirrors for his eclipse because his stockers got hit. They did not sit right on the car and instead pointed up. So make sure those are adjustable or other people have used them on the miata. His said eclipse in the auction, but we all know how accurate those are.
Edit:
http://forum.miata.net/vb/showthread...=small+mirrors
http://www.finishlineperformance.com...led_mirror.jpg