Decks designed for or based on playing cards.
The Gypsy Witch Fortune Telling Playing Cards are a blend of normal playing cards and Lenormand cards in suit and structure, but have a small roughly illustrated scene in the bottom right of each card and a divinatory phrase or two above it.
The Nine Lives Illustrated Playing Cards is a deck inspired by tarot, with 54 cards including fully illustrated Royals, Aces, and Jokers. Featuring the Kings, Queens and Knights from the Nine Lives Tarot, each Royal has been redrawn and redressed to match their suit, while still retaining some tarot symbolism.
The Playing Card Oracles Divination Deck is a regular 52-card playing card deck, though more decorated than most. It's the companion deck to Ana Cortez's well-regarded book, The Playing Card Oracle, which explains her system for divining using playing cards.