1. Buy a spray paint that you can easily apply to metal surfaces. This is a hammered finish spray paint that I bought for less than $7. I wanted my fixtures to look like dark metal but there are all kids of paints for all kinds of decorator styles.
2. Clean off you light fixture and lightly sand it if necessary.
4. Unscrew the knob that connects the sconce to the wall.
5. Tape paper to the wall to protect it from the spray paint. I used old Christmas wrapping paper that I buy for pennies at the after Christmas sales.
6. Replace the sconce carefully. Do not put the main screw back on, paint it separately, you do not want it to get stuck as it dries.
7. Spray the sconce until all parts are covered. I made a mistake and didn't get the underside. I'm going to have to redo mine so make sure you got it everywhere the first time.
8. Let dry. Make sure that the paper isn't sticking to the sconce.
9. Remove paper and put main screw back in place.
10. You can also put the bulb back in and even change out the glass. Our Church did a swap earlier this year of old items we didn't need. It was basically a free, multi-family garage sale. There I picked up a big box filled with glass for light fixtures. This one is a little too clear or my taste so I think I will lightly paint the inside white.