To get designs on your Cash App card, you can use the Cash App app to design your own card or you can order a custom card from a third-party company.

To design your own Cash App card:

Open the Cash App app.
Tap the Cash Card tab.
Tap Design a New Card.
Choose a design from the gallery or upload your own photo.
Add text or emojis to your design.
Preview your design and tap Order when you're happy with it. https://cashapphone.com/blog/cash-app-card-designs