Hallmark and Venmo Christmas greeting card features a cheery illustration of a Christmas tree decorated with rainbows and colorful ornaments paired with a sweet, simple message of love and gratitude. A unique scan code inside lets you easily—and securely—give money in a card with Venmo. Foil details. How It Works: Just scan the unique code in the card, choose the amount you want to give and write a message. When the recipient opens it, they’ll scan the code to access their money with just a few taps—no more lost checks or ATM runs!