This compilation of at least 15 projects is "An amusement park for adventurous plastic frogs." This "thing" involves minor parts to enhance overall operation.
Video of the complete project is available at:
Individual projects (with link back to Thingiverse for design and print files) are available at:
Search for "Froggy World"--everything
We have been accepted at the 2013 San Mateo Maker Faire--see us there!
Because there are hundreds of parts and six microcontrollers--it is broken down into projects.
The design and print files are all available on Thingiverse. Construction information is available on instructables.com