Magic Item Creation
When an item is created, it may be designed to be used as an implement for any one class or category of implement, even though its physical form may be quite different. For example, Bards normally use wands as an implement. However a drum can be made to be a bard implement, at no further cost. Or, a drum could be made into a holy symbol (of an appropriate god). Basically, take an item in one of the books, and alter it in this way, and it remains the same level.