This css code will help you to add custom cursor image.
SEE DEMO
Copy this css code to your html page.
OR
Copy this to your css file
body {cursor: url(https://lh5.googleusercontent.com/-u1rSVKP3Vpc/UAEqLZnKv0I/AAAAAAAABCQ/3alnkvGlnlQ/s32/cursor.png), url(https://lh5.googleusercontent.com/-u1rSVKP3Vpc/UAEqLZnKv0I/AAAAAAAABCQ/3alnkvGlnlQ/s32/cursor.png), auto;}