Bonnie asked if it was ethical to offer as gifts folds of Yami Yamauchi's "Fireworks" to people that make donations of a certain amount to a food bank.
Bonnie, it totally is ethical. There's a big difference between selling a fold of someone else's origami model and offering it as a gift as a thank you for the donation made. You don't have to ask for authorization from the creator to give your fold of their model as a gift. The one important thing to have in mind is to please learn to fold those authored models from legal sources. A pirated book wouldn't be one, just to give an example. Cheers! -- Gerardo gerardo(a)neorigami.com