Ever wonder how people can put a Paypal “donation button” in their blog? How people can create their own Paypal “buy now” button to sell their products online?

Well, PayPal is a very popular site that acts as the middle man allowing payments and money transfers to be made through the Internet. It is the safer, easier way to pay online without revealing one’s credit card number. PayPal is free to register, but it charges a fee when one performs payment processing for online vendors, auction sites, and other commercial users to transfer funds worldwide.
When you buy things online from sites that accept paypal, there are some sites that have the Paypal button for you to click on it and buy. The buttons that one can always see from Paypal are: Add to cart button, Buy now button and Donate button.

PayPal Button Factory is Free online Auction Tools that you can Make your own Paypal add to cart, buy now, and donation buttons.
PayPal now has a new logo and is updating checkout buttons and other graphics.
For new buttons you can download from here.

Add to Cart buttons enable your buyers to add items to your PayPal Shopping Cart while browsing your entire site. When finished, your buyers can make their purchases quickly and securely on PayPal-hosted payment pages.

Buy Now buttons enable your buyers to buy items from your web site. When finished, your buyers can make their purchases quickly and securely on PayPal-hosted payment pages.

Donate buttons enable your donors to donate from your web site. When finished, donors can make their donations quickly and securely on PayPal-hosted payment pages.

Besides, one can also create a Paypal button by login into Paypal account and do it manually from the Paypal account there.

There are some others use Paypal button generator software to do it.