Our customers order tickets from Amlon (https://www.amlonprint.com/tickets)
The ticket size you'd want to order would be the 3.23' x 4' tickets.
Here's a mockup showing the dimensions as that might be helpful in the ordering process:
The ticket printers we recommend are the:
- Zebra GX430t
- Zebra ZD420t
- Zebra ZD621 203dpi (really important it's the 203dpi and not the 300dpi)