Abstract: A novelty or advertising display device is disclosed which has a base optical prism with polished surfaces on clear acrylic material with a top surface spaced above a bottom surface and a slanted viewing front face between them together with messages printed on the prism top and bottom surfaces or alternatively on a substrate sheet captured at the bottom surface with the messages so located in either instance, that some messages appear directly and in appearing and disappearing mirror image and other messages appear and disappear from view to a person moving relative to the device resting upon a table or countertop so as to draw attention to the display.