This is the Substitute toad from Pokemon in a neat little icon form. If you download it, you'll get a .zip which contains the vector .svg image, the .ico, and some .png images of different sizes.
You can use this as an icon or anything else for anything you want except for a Pokemon Kit. I'm using this for mine. It'll be the mascot for the example game. This is the first vector image I made in Inkscape.
Pokemon is (c) Nintendo. All work belongs to their respective owners.