Abstract: Two plastic film transparencies are rotatably attached side-by-side by engagement of film portions on one transparency with at least one incision on the other. There are images on each transparency and the rotatable attachment allows relative rotation of the transparencies to overlay the images on the transparencies. The images are cooperative so that overlaid images provide cooperative images. The rotatable attachment is accomplished by film portions on one transparency engaging an incision or incisions on the other. In some embodiments of the subject invention at least one of the transparencies is essentially circular. In all embodiments of the invention the relative rotation of the transparencies is in a range of 10° to 360°.

Abstract: A first plastic film transparency (10) is formed to include an image (14). A second plastic film transparency (12) is formed to include a complementary image (16). The transparencies (10, 12) are positioned side-by-side. The first transparency (10) is formed to include a circle of circumferentially spaced apart incisions (18) in it. The second transparency (12) includes film portions (20) that project through the incisions (18) and connect the transparencies (10, 12) together for at least some rotation, one relative to the other. One transparency (10, 12) can be rotated relative to the other to bring the images (14, 16) into a predetermined relationship, each to the other, so that the two images (14, 16) when viewed together will provide a predetermined combined image.

Abstract: A picture card (9) including a front card (11), a back card (10), a first transparency (14) and a second transparency (18). First and second transparencies are rotatably secured together by means of grommet (20) and second transparency (18) is mounted to back card (10). First transparency (14) preferably includes an image similar to that of second transparency (18), whereby first transparency (14) can be rotated to align its image with the image of second transparency (18).