1. An object image display device comprising: part image storage means for storing a plurality of groups of part images having different shapes, each of the groups corresponding to a respective one of a plurality of predetermined different parts which compose an object, a respective one of the part images of each of the groups being disposable at a position corresponding to one of the plurality of predetermined different parts of the object, said part image storage means also storing designating data for designating the respective part images; object image storage means for selecting a plurality of part images from among the part images having different shapes of a corresponding one of the groups stored in said part image storage means, and for storing an object image of the object as a combination of the selected plurality of part images; object image display means for displaying the object image stored in said object image storage means; part image display means for reading from said part image storage means at least one group of different part images corresponding to at least one part of the object image displayed by said object image means, and for displaying the at least one read group of different part images; select means for sequentially selecting part images to be successively changed and displayed from among the at least one group of different part images displayed by said part image display means; designating data storage means for reading sequentially from said part image storage means designating data corresponding to the respective part images selected by said select means, and for storing the read designating data in order; change start commanding means for initiating a start of successive changes of the respective part images selected by said select means; and display control means responsive to said change start commanding means for sequentially reading out the designating data stored in order in said designating data storage means, for sequentially reading out from said part image storage means part images corresponding to the respective read designating data, and for sequentially substituting the read part images for the corresponding one of the object image displayed on said object image display means, to thereby display the resulting object image as if at least one of the part images of the resulting object image is moved successively.