My next project is going to be a book detailing rules for alchemy and making magic items. The idea is to add a new occupation, "The Alchemist " (and perhaps "The Tinkerer" ) and set a standard for pricing as far as making items that hold sorcery spells, and the more mundane items made without actual magic but with the magical properties stored within all plants,herbs, minerals,ores, and gemstones.
The old Bards Games "Compleat Alchemist" is the baseline inspiration for this work but I've purchased a couple of complex books on ancient herbal remedies and folk lore alchemy to guide me and add details not previously available.
In the spirit of "Keep It Simple Stupid " I'll include a much easier method of using this work as well, utilizing methods more familiar, from previously published materials.
I've even found a dedicated artist to render some custom illustrations! (won't say who until he says it's okay, but he can chime in or post examples if he likes.)
I've only just begun writing this up and I plan on taking about 2 or 3 months to complete it, but I'm very excited to bring this to your campaigns if you find a need!