Last week I goofed up and deleted the Recycle bin icon from my customer's Vista Desktop.  Fortunately, getting the icon back is easy.  Here's what you need to do.

In Vista

1. Right Click anywhere on the Desktop
2. Select 'Personalize' from the short-cut menu
   
   
    
3. Click the 'Change Desktop Icons' link in the upper left hand margin
   
    
4. Check 'Recycle Bin'
   

While you re there, you can even add the icons for My Computer, the Control Panel, and more

That's it!