I have been having great fun fiddling with the Prisma App on my phone. It takes any of your photographs and turn them into art. You can choose between many many xxx and control the strength of the effect by swiping from left to right.
I have used it for my Facebook profile and cover pics but you can also download them and use them for all kinds of other things. It is great fun to fiddle, and is free!
The ones below were done very quickly so I am sure I could have made them look better by means of a few tweaks. The next time there is a delay on the public transport I am going to pass the time by fiddling with it.