Some embodiments of the invention provide a method for concurrently presenting two synchronized animations based on an input value that is received through an input interface of a device. The method defines, based on the received input, a first animation that presents a first animated object, and then uses a set of attributes of the first animation to define a second animation that presents a second animated object. The method then displays at least portions of the first and second animations concurrently. In some embodiments, the method displays the first and second animations on a display screen of the device, or on a display screen connected to the device.