Call me Mr. Cynical if you like, But why not get some huge blank canvases and a few big tubs of paint.
Invite any passing folks to have a go. there was a TV doco on once where someone was doing exactly that.
He had a big warehouse and paid a bunch of homeless people to do their thing and paid them a few quids
which they were more than happy with. The paintings ended up in a swish gallery and went for £££££££s.
The guy was challenged for exploiting the poor homeless peeps. He defended himself by saying that they were
happy with what they got paid and whereas he could sell the stuff for big bucks they couldn't. Fair enough I suppose......
I re-framed a watercolour for a woman once and on dismantling the old frame found it there was what I took to be
an abstract oil on the inside of the backing board. I thought it was quite attractive. I would have happily put a decent
frame on it and hung it on my own wall. When I mentioned it to the lady when she came to pick up the w/c I emerged
that it was a board that she used as a palette to mix paints on and when it was too encrusted she re-purposed it as a
backing board. She didn't want it back.
I left it kicking about the shop and it got a few favorable comments. In the end I gave it away to someone as long as they
paid for a frame. Which they did.
I could have stuck a huge price tag on it and sold it like that. But I am too conscientious for my own good.