Duane Keiser originated the phenomenon known as “painting a day“.
Keiser recently posted on his blog a short time-lapse video called Peel where he paints the process in peeling apart a tangerine, repainting over the the same painting where the past vanishes just like in real life. He’s also auctioning his final piece which at the moment of the post is at $225.

I’ve seen paintings repainted over, but too paint over purposefully and retain the history through video is a great  addition  and a great story! If this was done digitally, a buyer could go through each stroke forwards and backwards, but to make it something non-digital retains a history and mystery which at times can be more valuable than information.