My name is Dan Pressman and I am from the 123D Creature team at Autodesk. We have just released 123D Creature for iPad and will be uploading models created with our App here on Thingiverse for your 3D printing pleasure. All of the creatures we upload here have been created within the App on iPad and will be available for download and editing from within the in-app Creature community. So if you want to add some additional arms or legs, play with posing or change the proportions of any of these files just head on over to the App Store and download the App today! Anything you create in 123D Creature can be exported as an OBJ file using the mesh export option for easy import into MakerWare. We look forward to seeing your creatures!
123D Creature on the App Store: https://itunes.apple.com/app/123d-creature/id594014056