Deceptive toys to illustrate (such as: bug-eye, double vision and animation with zootrope, octascope and mirascope)
This optical toy contains mirrors and small coloured pieces inside. If you look into the hole, you can see symmetrical nice coloured forms, and if you turn the kaleidoscope, the wiew will change every time.
Zootrop, flipbooks etc. they are forebear of movie
Special optical toy with similar structure as kaleidoscop, but it has no small coloured pieces. It cut one small piece of our real surroundings and multiple reflect it.
Special designed optical instruments, and perception disillusion, eg. item is not where we see.
Spin tops with painted markings, their shape fuse during their rotation or spiral move.
These postcards you can come up for stereo wiewer. In the holes there are also lens. If you look into it, you can see a 3D picture.