The first airbrush.
I was watching a show about the paintings in the caves from before 10,000 years ago and they showed how they was able to paint most of them. On one painting they had the colors grounded up then placed them on one hand and put the other against the wall. He them blew the colors on the hand and the cave wall, he then removed his hand leaving a print on the wall.
This picture is not the one they did in the show but a real one in one of the caves. This is a picture of one of the first "airbrush" being used to make a print of the painters hand, that's "him" from 10,000 years ago.