These devices appeared in countless comics, and they had one straight appeal: draw girls. Draw them even if you can’t draw. The image of the female would be magically projected on the paper, and you could reproduce exactly what she looked like, even if you couldn’t eve draw a straight line.

Of course, straight lines weren’t what you had in mind, were they? More the curvy type.

Draw comics for no particular reason! Take the magic art reproducer into the wilderness and draw mountains! Copy that blueprint for a building that will never get built, because your complete lack of draftsman skills have made it impossible for you to even consider a career in architecture!

As for getting a woman to stand in front of the thing in her underwear and everything - that’s up to you, pal.