Originally Posted by copacabana
I'm sure Brent will chime in shortly with some good advice. His book has the plans for an origami aluminium dinghy that can perhaps be tinkered with to get Bob's shapes. I'd love to see this go forward- the world needs a decent aluminium nesting dinghy!
You can experiment with a cereal box and scissors to get an idea of what shapes you can get with origami. Designing an origami dinghy should go back and forth from drawings and calculations to a model, and back again.
Many friends have made aluminium dinghies, and cut them in half for nesting dinghies. All have been extremely happy with the results.