Herbs and Potions Add-in for BG and BG1Tutu
DEFINITELY A SPOILER: If you want to explore how to create all the items on your own by using the herbs/unenchanted weapons, do not check the link below. Although if you've already had enough fun with it, and want to see the complete list, feel free to check it!
See all possible items you can create: http://www.blackwyrmlair.net/Mods/Readme/herblist.php