Yeah, it's somewhere on my driveway, sorry. Even if it came off in one piece, it's only like 1/2 mm x 3/4 mm, so it's pretty tiny. I didn't even notice it was chipped until I looked at it under the microscope.
There's one on ebay now for $10+$15 shipping. I'll email the guy and see if he'll ship just the middle part for less.