Invisible Sun RPG – Vislae Kit
The Vislae Kit contains some of the key, player-focused components of the Black Cube–the game's four unique dice, a copy of the surreal Sooth Deck, a grimoire pad for keeping track of spells and secrets, a character tome for each order, and the cards, tokens, and sheets specific to the orders, all in a gorgeous black box that will look great on a shelf or next to the Black Cube.
The Vislae Kit doesn't have anything new in it–it's not required to play by any means–but if your group has one Black Cube and an individual player wants to have a piece of Invisible Sun for themselves, a Vislae Kit is a nice option.