A year or so ago I interviewed a Slovenian artist who creates space paintings using spray paint. He's got lots of videos at Goodle videos, and they are a treat to watch.
Now he's got a webcam at his website, and streaming video, and you can see it at:
Every day from 19:00 to 21:0 GMT (right now)
So now you can order a painting from him (he speaks several language including English!) and watch him paint it before your very eyes, on his website!
Here's the link to the interview at The Thunder Child: