Remove the Recycle Bin from the Desktop
If you don't use the Recycle Bin to store deleted files , you can get rid of its desktop icon all together.
Run Regedit and go to:
HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/explorer/Desktop/NameSpace
Click on the "Recycle Bin" string in the right hand pane. Hit Del, click OK.