Garden Toad Croaker

This is a 'croaking' version of the garden toad scan of pmoews http://www.thingiverse.com/thing:23902. I used Blender to smooth the original STL which was a little noisy and then used OpenSCAD to hollow it out, make a flat bottom (which got messed up by the smoothing) and add the triangle nubs for making the croaking noise. If you have not seen one of these, you take a dowel or stick or something and slide it across the nubs and it simulates a toad croaking. Seems to work pretty well (perhaps I can upload a video later)--though the sound was not as deep as I had hoped with version 1.0. I designed a version 2.0 that has a slightly smaller and narrower opening with a slight expansion that I thought might amplify the sound a little. Haven't had a chance to print it yet, so please share if you make it.
I have also included a picture of the painted version--this was for a pond themed project for my son's preschool. Have fun!