Step 1

Open Expression Blend 4 -> select Silverlight-Application -> select Silverlight-Application -> change Name and Location accordingly -> hit OK.

Step 2

Select Assets -> select Shapes -> select Callout-Rectangular, draw Rectangle, manage the width & height, background-color, stroke color, margin and shadow-effect as shown below:

callout-rectangle-in-expression-blend4.png

Step 3

Select Assets -> select Shapes -> select Ellipse, draw Eyes and Retina, manage the width & height, background-color, stroke color, margin, blur-effect and shadow-effect as shown below:

eyes-retina-in-expression-blend4.png

Step 4

Select Assets -> select Shapes -> select Arc, draw Nose, manage the width & height, background-color, stroke color, margin, blur-effect and shadow-effect as shown below:

Nose-in-expression-blend4.png

Step 5

Select Text-Block from Tool-Box, write text according to your choice, manage the width & height and foreground-color as shown below.

Here's the Android Message Icon is ready.

Android-Message-in-expression-blend4.png

Summary

This article provides the new idea of creating "Icon's" through control's.