Favourite script of mine so far.
Been using this for "long", I got one perception. - Making Jewellry-> Right now you don't have to use the bar (silver in my case) on the furnace, but you can simply click on the furnace for further options.
Don't know if this could make any change, but if people getting monitorized, this might be better then almost instant rightclick on the ppl around it, and inhuman reaction to the furnace.
Keep up, really nice job