Card, bin, tray, hopper?

Kanban: translation is “visual card”. A written card can accompany any size item; if items are small enough to fit into a bin or tray of some kind, it’s best to place the card on the outside of this bin by labeling the bin. You can call this whatever makes sense in your own studio. At Meliora they are called “trays” because the most often used size is a re-purposed cardboard fruit tray collected from a local wholesale store.