Deck of Hands
You allow Jester to examine your Seven of Hands.
Jester tells you, "Oh goody, you found one. Come back when you have the whole deck."
The cards are givable/tradable. Repeat cards can also be exchanged by giving a Jester's Token to a Casino owner then giving the repeat to the High Stakes NPC, who will give you a random card in return.
Part of the Jester's Cards quest, the cards that make up the Deck of Hands are:
Combine the cards in order, from Ace to King:
Besides the cards of hands, there is also a jester card. This acts as a "joker", so can be used for every missing card in the deck.
Verified to drop off the following creatures:
See also Deck of Eyes.