This tutorial was a lot easier than the dice! I manged to get the modeling done all in one go but i wanted to play around with the textures and lighting. The spotlight was coming out too dark so i added an ambient light to brighten the image up. In the image above i noticed that the glass wasn't bending the light so i adjusted the ray trace settings and rendered again to get this image.
The lines of the checker board are now being refracted! :)
After adjusting the settings i got rid of the ambient light and added a directional light to cast a shadow. In the shadow I wanted to see the difference in transparency between the glass and the rest of the magnifying glass.