Here are a couple easy ways to create your own modern candleholders. These projects make excellent centerpieces for the wood and iron table.
Try using iron pipe fittings to make a rustic, modern candelabra. Once you have a collection of pipe fittings, you can assemble them into all sorts of different arrangements. If you get bored of a particular piece, simply take it apart and make something else with it.
If you have leftover concrete mix, take some old, plastic water bottles or milk cartons and fill them with concrete. While the concrete is still soft, insert a tea candle. Try layering in different colors of concrete to create a fading, ombre effect.