1. First of all open a New Document here I have selected 300 Pixel / 300pixel. Now from the Custom Shape Tool seelct a shape that look like a jigsaw puzzle piece.
2. Select Pen Tool , and Right click on the shape > Make Selection > click ok at 0.2 pixel.

Learn to create 3d objects.

This photoshop tutorial teach you to how to make circles and 3D circles.

The tutorial teaches you how to create a 3D Basket using the wrapping options available in Photoshop CS2. Some features in this tutorial may not be available with a version of Photoshop earlier than CS2

Start a new document by pressing Ctrl + N. I used 500 X 500 (you can make it any size), than go to Filter -> Render -> Clouds.
Now go to Filter -> Pixelate -> Mezzotint and use the following setttings.

In this tutorial I will try to explain how to create a 3D effect from a 2D-image.

Start by creating a circle using elliptical shape tool.
Enable subtract from shape area from the top bar.
Create a triangular shape using polygon tool.

Make some clean cut 3D spikes.

Create your very own "software" box, very easy photoshop tutorial!

Editor's Pick in Photoshop Tutorials, November 2006
A simple and effective method of creating a 3D-text is described in this tutorial. Read it and make sure how simple it is!