I have several brand new GM the blue/chrome metal WS6 Performance Package rear deck emblems. That color I believe was unique for 1999 only.
I have 4 of them. Price is $55 each and $12 UPS. Paypal works best or credit card. I think GM list is around $90 each now. Part is exactly as described. If you need to see a photo email me
denniskirban@yahoo.com personally and I can forward you a photo.