The Manual of Aurania

From the introduction:

While playing many games of Dungeons and Dragons at Areo Hobbies and enviorns, we came up with many types of new monsters, characters and treasures. Many of these were forgotten, perhaps deservedly so. Several were outright stolen and soon appeared in print.
To prevent this from happening again, we began a collection of these figments of our imagination. A prime selection of the collection is here, provided for your use and (hopefully) reading pleasure.