Hi, Dawn, Mary Williams D I have designed three inflatable models based on the waterbomb base: cat (the one that Kathleen Sheridan taught in a workshop in OUSA), a turttle and an elephant (called balloonphant).
The cat is tricky but not difficult I think, so diagrams will be in a book I m close to published. Turtle and elephant are not as close to waterbomb as cat, and much trickier. So I finally didnt make diagrams... You can contact me by facebook if you want more details. Oriol esteve