Seller Cart - Modular display (Patreon)

You look over the seller's cart. It was surprisingly well provisioned, but ultimately nothing you needed. As you turned to leave, the seller quickly said. 

"Ah, A discerning customer... I might have something for you as well"

You turn round as the seller opens a hidden panel in the cart to reveal a case bound in leather. He turns to you, opening it. "Behold, my collection of arcane talismans"