Let's face it. Everything can be a canvas. I especially like painting on things. It's a challenge to see what you can fit in the space allowed and putting your special touch on an object.
Chairs are a perfect space to get creative on. 
These chairs were kind of beat when I first got them. One was found on the side of the road, two were found at a local thrift store. Most thrift stores sell that odd chair cheap. A set of four might sell for more but one? Grab that deal!
These three chairs got the beachy treatment. First I did a coat of spray paint to give them an even white coat of paint. (Sorry! I didn't take before photos) I also had to reinforce the dog beach one because a leg was loose but that was an easy fix - I got my husband to do it. 😁
Next I started with the basic beach scene. Pick your horizon line. This cannot be in the exact center. It's always good to go a little below or above that center mark.
I think beaches are easy because it's basically horizontal lines of color. Blend the sky and sea and put on a beach. Ripple of water foam, maybe a palm tree or palm leaves. Done.
After the painting is dry I seal the chair with a waterproof acrylic sealer. Be sure to spray all sides of that chair to ensure good protection.
Woof! Good dog!