Hi Mark,
Here is a Southwest themed sconce to start you off, hope it's to your liking.
I would probably do the main sconce part in 3/4" material, the size is designed to be 10" in height.
The sconce ledge that will hold the tealight candle can be done in 1/2" materia and is designed to be size of 4.5" x 4.5" to hold a 1.5" candle adequately. The ledge should be set along the edge under Kokopelli's feet.
I would use Rapid Resizer to acurately print the patterns to their intended sizes.