In the spirit of sharing … Some of the visitors may not be aware of a great web site that hosts public domain clipart images. This is the real reason why you see lots, lots, lots of same images (‘my’ owl can be an example) in free apps across the world. Feel free to go there. It is way better than using an image you found somewhere.
Remember – its free only when the license allows – not if you found it via a google search 🙂