Dear Michael
I too started like you but the wait is long and takings are slim. I have since followed the Galloway Model and it has been a road paved with riches. First register yourself as a charity or not for profit entity. Then pick a cause. I would suggest adopt-an-abandoned donkey. Sadly whales, dogs, koalas, snow leopard etc are all taken. If you like free flights, then step up to sponsor-a-child in a 3rd World.
If you are really up to it, start one that handles with the abstract such as peace, clean air, cycleway, polyamorous marriage etc. All you need is get a website, copy and paste, plagarise, attend conferences and give speeches in far away countries.
The best kept secret is leasing a ship with a crew who actually pay a princely sum to be volunteers and then follow a Japanese whaling ship and take part in a drama with hoses.