Any of the ticketing addons on the page I linked to (and also our Eventbrite Tickets addon) offer a means of doing this 🙂
Do note though that it is really the underlying ecommerce plugin (such as WooCommerce or Shopp) or else, in the case of Eventbrite, the web service, that really facilitate PayPal payments – our plugins simply join those up with our calendar to help make it easier to sell tickets.
So, if in doubt, please check in with the vendor of the ecommerce plugin (or else with eventbrite.com) first of all – but, again, they’re all safe bets here.
I hope that helps.