We just spent four, maybe five, minutes Googling around these here internets looking for the most expensive safety triangle we could find. You know, those orange reflective thingermabobs you can erect in the face of oncoming traffic to warn them of your breakdown/tire change? Most are $12. Though the most expensive one we could locate costs $21.49, although upon closer inspection, that's for a three-pack.
2009 Chevrolet Corvette Zr1
2009 Chevrolet Corvette ZR1 – Click above for high-res image gallery