For $US100,000 ($134,149), Hammacher Schlemmer will sell you a life-size replica of a Tyrannosaurus Rex, but for $US2.39 million ($3.2 million) Theropod Expeditions will sell you the real thing -- or at least 45 per cent of one. With 135 of its 300 bones being genuine fossils collected in Montana and Wyoming, it's more complete than many T-rex skeletons on display in museums.