The natural icons like weather icons, tree icons, sky icons can be commonly found in most of the icon options. They can be seen in several websites that host a range of icons The weather icons can also be used in several commercial and personal applications. They can also be used for logos and many more. While downloading these icons you have to be careful about the spy ware download and virus attack. The spy ware is capable of scanning the contents in a system. This might give clue to the opponents and cause leakage of the contents. The virus can also cause damage to the parts of the system.