Foil candy wrappers like the ones Kit-Kat used to have... I used that chrome foil on a '68 Dodge Dart and it turned out ok... No glue required...?
Another one I've been looking at lately is the Pop Tart wrapper... Almost looks like a bright stainless steel... great for doing window trim... But that needs a real thin glue.. For plug wires, you could buy those cheap ear buds for your cell phone from any dollar store.. Those have 30-32 gauge wire..