Gorons can eat rocks after preparing them at a kitchen! Also can make lava juice at the still and bomb pellets for slingshots at the craftsman's workshop!

In adventure mode, defeating 3 bosses and grabbing their plot coupons allows you to get the Master Sword or Silver Arrows; beating Ganon[dorf] will get you the Golden Master Sword. You can also use plot coupons to get the Ether, Quake and Bombos medallions, but you'll need the Master Sword to use them. Using them is done by typing "useitem" in the DFHack console, type "useitem help" for more info. You can also get masks with plot coupons and you don't need the master sword to use them.