Wrought iron fencing - instead of varying the height on the top which makes it look like spikes, turn it upside down to create varying heights on the bottom. - create gaps in the center to create negative space that makes the poles look floating
While this may not look like much to the naked eye, it is actually a long mirror attached to a wall in which an applied lead design is made to resemble a wrought iron gate. What you see in the mirror is a reflection of the garden IN FRONT of the mirror, not a gate, in which you are looking through to see the garden. I have always wanted to do this.