1) Purchase card stock and print everything out at home and cut it all up. This actually works fairly well and the cost is low.
2) For a lower quality but even cheaper version, print everything on normal paper at your house. Then sleeve the cards with any standard poker sized card to create rigidity. Our actual cards are standard bridge size and our print & play cards are slightly smaller still. But sleeving them with a poker card will be no problem for the print & play version.
3) Take it to your local print shop and have them print it for you.
Lastly, there are also multiple youtube videos, wikis, and reddit articles that go more in-depth with various options, such as this one:
Pleas share some pics and your experience playing the game with the Dice Throne community!