TYO Toys has a number of their Artist Series 1 - 3.5" mini trucks - available for purchase. The two above trucks were designed by EWOK 5mh (one in white and one in silver). Below, there are two designs by SKUF.
They've also teamed up with the Sucklord on his Chinatown Seafood Delivery Truck (below left) and David Flores on his Live Wild Animals Truck (below right). Each truck features working wheels and decal graphics on both sides. On many of the designs, you can specify the cab color that you want. And each limited edition piece runs $20.00.