Does anyone know where a factory replacement for the 2002 ss camaro center wheel cap can be purchased?

Just discovered one of them fell off at some point recently.

See image below (it's not the anniversary wheel):

 

Probably will have trouble finding a new old stock single cap. Hawk's Motorsports has a set of 4 reproduction caps listed on Ebay. The ad says they are GM Licensed, so that may be as close to original as you can get. Might want to contact them to see if you could buy only one.