For those that are old enough to remember the valve caps with the valve remover tool and rubber cap...there is a mob in Germany selling a chromed version that goes very well with the Hilux alloy rims.
I grabbed 20x and am pleased with the purchase, they are a quality product.
For those that aren't old enough, the caps aren't torn off by sticks when idling around the paddock...the plastic caps get torn off readily.
http://www.ebay.com.au/itm/10x-Metallventilkappen-mit-ventilentferner-gummi-Messing-Ventilkappen/311418392772?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649