How to make Matellic or shiny plastic Balls using photoshop techniques.
[1] Take a new file of 400 pixels by400 pixels and resolution of 72 dpi in the RGB mode:

[2] Fill the Background with color Black then go to Filter>Rendar>Lens Flare and put exactly what the image shows then press OK:

[3] Your image should be look like this:

[4] Go to Filter>Distort>Polar Coordinates and put what this image has:

[5] Then go to Image> Rotate Canvas> 180:

[6] Your image should be look like this.

[7] Go to Filter>Distort>Polar Coordinates.

[8] Your image look like this.

[9] Then take the Rectangular Marquee Tool and create a circle as shown image below.

[10] Then right click select the Layer Via Cut.

[11] Your image should be look like this.

[12] Now Delete the Background layer and create a new layer.

[13] Then press the Cntl+T, to Transfrom selection. (Edit->Free Transform)

[14] Press Cnlt+B, to Color Balance, use the following settings.



[15] Your final image should be look like this.
If you want different colors for the Balls just change the color ballance stuff.
Sourse: Funphotoart.com