Crafting lets you transform your collectibles into new, rarer ones. Tibles creates the Craftible recipes and you input items from your collection to receive the new item.
For example (and this is only an example) input 4 base, 3 buttons, 2 patches, and 1 pin to receive a rare gold pin. The resulting Collectible will be unique, with its own Limited Edition serial number. Serial numbers are issued randomly.