Free Frog model from William Vaughan's Web Site

The models/scenes/Textures may be used royalty-free in your own work but they may not be used for any commercially or profit related purposes of any kind. Also, these meshes/scenes may not be sold individually or included in, or sold as, or provided for free in, a collection of any kind or any other electronic transfer methods.

Please also remember you must always credit the individual who originally created the files. This credit must appear within your work and by using the model/scene you agree that you will do this.

http://www.pushingpoints.com/2011/01/roid-ribbit-rig/  (for the download)