Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Push for Pizza - The easiest way to order pizza. EVER.
pretix - pretix helps you to sell tickets for your event in an easy way. It supports multi-lingual events and provides a wide range of features
Pizzatime - Host a pizza party for your remote team
Ticket Tribe - Sell tickets online with no fees per ticket
Suspended Pizza - In parts of Italy, when someone goes into a coffee shop and orders an espresso, they simply pay for two: the customer drinks one and the other one remains “suspended” until someone else orders comes in and orders it.