In life, certainly. If it meant another could be helped, saved even then it would be a donation I would give gladly. And unlike Nspeel I wouldn't want any money.
In death I am a complete organ donor, you name it if it's still working ok they can use it. Our bodies are only a shell after all, a means of allowing us to interact and experience this world. The essence that is me would have been long gone before they'd start removing things!