Adobe Tutorial 4

First I created a circle shape in illustrator and filled it with orange. 

Then I copied it and pasted the new one in Front of the other circle and filled that circle with a lighter orange color, and scaled it down to 40% and put it in the lower half of the circle.

Then I selected both objects and went to Object > Blend > Make and blended the 2 circles together.

Then it said to make an oval and fill it with a linear black and white gradient. 

Then I placed it on top of the other circles. 

Then I went to the transparency panel and selected screen mode with made it look 3D. 

Then I just copied and pasted the whole thing twice, and changed the circles to blue and green. 

This is my final image. My beautiful 3d icons.

Source: http://ndesign-studio.com/tutorials/glossy-button