code: public void setSideIcons(Icon[] icons)
  	{
  		for (int i = 0; i < icons.length; i++)
  		{
  			if (icons[i] != null)
  				setSideIcon(EnumFacing.getFront(i), icons[i]);
  		}
  	}
docs: Sets the {@link Icon} to use for each side of the block.<br>
  The index of the array is the {@link EnumFacing#getIndex()} value.<br>
  If no icon is set for a side, {@link #defaultIcon} will be used instead.
  
  @param icons the new side icons