My dad, Doug Hansen, is starting to put up some of his work on his new website: DougHansenArt. He is a master of a variety of different media: watercolor, oil paint, pen and ink, and whimsical constructions. My favorite pieces are his toys, two examples of which I've included here. Above: Wild West Wild Ride (1974). When you turn the crank, the horse gallops, the rider's pistol appears to raise into the air from the recoil of firing it, and the yellowed southwestern scenery in the background rolls by in an unending circle.
Below is Fierce Face (2001), a rocking dreadnought with prominent rivets and trainable turrets. Note the side-facing secondary armament.