This is an advanced Photoshop tutorial. Do not attempt this if you are not sufficient with the basic functions of the Photoshop Interface. Select a dark gray as the foreground color.
Gradual curves look nice.
This may take a few tries to get right. Name the layer Wire . 2 Make a copy of Wire , by dragging it onto the New Layer button. Double click on the new layer, and rename it Cut Wire . Hide the original layer Wire , by clicking on it's eye icon in the Layers window.