Loot is the term for items that may be dropped by mice when they are caught in traps. Different sorts of mice from varied locations drop loot. Some of the loot dropped are needed to make progress; such as map pieces. Other types of loot are simply bonuses to the hunter in the form of extra gold or points.
A few loot items can also be obtained by alternate means, such as at a General Store or in the Marketplace. Also, remember that there are other Inventory items that cannot be obtained as loot. This page only lists directly looted items; items that are indirectly obtained by opening a looted Special item (for example, Acolyte Relic inside a Mysterious Box) are detailed in the respective pages of special loot items.
This table merely lists all known loot items and what Inventory page the item can be found on. The Availability column lists which events provided a given loot item; if it is empty, the item is always available. Follow the links for more details about an item, including which mice drop the item and in which locations.