This is no longer new. The anonymous painter aka p-boy is painting the streets with his art in paris and is painting his bitcoin qr code for his wallet address allowing donations from bitcoin users. I was following how much did he made for doing such things and in the beginning he received 85$ worth of btc then later on it became 1000$ and the latest info was he have already earned 12500$ more or less worth of btc. Possibly sooner or later many artist will also follow his style since even beggars today are using qr code in begging at streets.