I dont know of a " mirror" vinyl... its metallic chrome.
My original suggestion was MIRRORED acrylic whic is a mirror finish behind a clear sheet of acrylic
where can we find that product Gav, or anyone ? 
Any sheet supplier should have it... Australian Sheet Suppliers in Brisbane sell it... Plastral will have it... ill get some more company names... its 5.15am and my brain hasnt kicked in yet
