Toys! Small toys shaped like things I know from videogames! With rules so I can make them fight each other! Again! The Witcher: No Man’s Land is a miniatures skirmish game set (I assume since Letho is still palling around with Nilfgaard) somewhere around The Witcher 2: Assassins Of Kings.
There’s a starter set out later this year with Geralt, Letho, a Griffin, a Striga, and some mates. It uses some of the same models from Cyberpunk publisher R. Talsarion’s Witcher RPG, so you can peruse or pick up a few of these already. I would recommend waiting if you’re tempted, though. Starter sets generally come with a chunky discount over buying models individually, and you’ll get the extra bits like cards that you need to play the game.