I wanted to make an inflatable turtle shell (originally inflatable turtle torso) and  Cyrin suggested a document of how I made it so I documented all the steps I took along the way into this text file. I don't know if anyone is interested in making one, but here is how I did it.

Note: I used two Intex inflatable turtles before they designed a new kind, so this is my only current concept document now.

List of Inflatable Turtle Links.
Inflatable Turtle Shell
Inflatable Turtle Shell at MFF!
Inflatable Turtle Shell R
Inflatable Turtle Shell R Tutorial