Can I sell raffle tickets?

Yes, it is possible to set this up within the app.

In this case, you will need to add a normal product to your store using the Shopify admin, which will be the ticket product, and give it whatever price you like.

Then, create a products raffle and choose this product as the only product which grants a ticket.

This way clients can buy as many tickets as they like to improve their chances to win the raffle.

NOTE: Selling raffle tickets directly may be illegal depending on your local laws, please check laws in your locale first.