This may sound morbid , but I have always wanted to be put back into the food chain . Burial at sea sounds good , but they don't allow it anymore , not without cremation first .
If you get cremated and scattered then your carbon atoms will find their way into forming larger living organisms and thereby work their way into the food chain. Course you could end up as a rock which wouldn't be quite as cool but I'd say its a 50/50 chance .