This is a device for animating pop-up graphical structures as are sometimes found in graphic media. The device changes the back and forth relative motion of elements in the device into alternating movement to animate elements like wings, arms, and eyes in graphical constructs. In operation, a movable element (38) in the device follows a zig-zag track (52) in another element of the device resulting in alternating movement in the attached graphical element (56).