Here's a nonconventional use of the RDNA Infinity Cove. I set object and ambient color to black, reflection and highlight to white, highlight at 90%. Then applied a very simple relection map as texture and a more colorful one as reflection map (a free one from Hai Gan, if memory serves.) You'll probably recognize this as the "chrome" technique, although I've found it can make for some nice abstract effects on background props.