I had made the non-sconce, but as I don't have a mantelpiece to hold a candlestick any more I made a sconce.

The sconce is made from a couple of ikea pieces.
Spontan magnetic rack (AU$1.95) bent about 1/3 of the length and the Vaghult candlestick (AU$1.95) ,with one rubber stopper removed, glued on to it.

I had to extend the candle to make it high enough for the non-sconce

If I make another one I will make sure I bend it straight (this one is on a bit of an angle.) Another option would be to bend it around something like a rail to make it curvy.