There are many ways you can fundraise apart from asking people to sponsor your run.
However, if you can pluck up the confidence to ask, we guarantee you'll be surprised at people's reactions. Not only are they likely to say yes, but they may even thank you for giving them an opportunity to make a difference!
Most people love to give to make the world better. And they'll often give more than if you organise an event or sell something.
This Ted Talk by Amanda Palmer may help.