We use paypal to donate some of organization which don't run ads or working as non-profit, they use donate button on blogger blog...
WHY PEOPLE DONATE
There are a number of different reasons why people make charitable donations. Some take action in a heartfelt attempt to help out people who aren't as well off when they are. Others take action from a impression of obligation, to be able to distribute the assets more evenly with society. Yet others take action entirely for your tax break that may be typically involved. But regardless of your reasons, when you make a donation to charity, you might be making a big difference. Just like types of reasons for doing charitable donations, there are also various ways that you can do so.
Here is the best way to add the button is to add "Subscription" button on website
Go to Paypal.com and login to the account
Visit Create button page
Do Like below images