I've got a book, hand-written, from the early 20th century where my great-great-grandfather (or something like that) made drawings while he was studying to become an engineer. The drawings are really wonderful and I wonder if I should scan them so that AI can have even more data or if I should selfishly keep them just for my daughter. Maybe something in between: maybe scan one page once in a while and post it.

Those drawings aren't animated but they look much better than the originals on that site: they're in colors and both work of art and engineering.