I was fortunate enough to find an original 68 standard wheel and a NOS horn cap. I'll post pictures in a few of both of them. I'm really excited to get the wheel restored to match my teal interior. I really appreciate the detail provided in this thread - thanks Sleddog!
1968 Pontiac Firebird 400 Convertible - April Gold/Deluxe Black Automatic 1968 Pontiac Firebird 400 Coupe - Aegena Blue/Standard Teal 4 speed 1968 Pontiac Firebird 400 H.O. Convertible - Alpine Blue/Deluxe Teal Automatic 1968 Pontiac Firebird 400 Coupe - Autumn Bronze/Deluxe White 4 speed