Jake uses the
spear he made in the forge very effectively killing Jungathas.
He also gave away the
quarterstaff he made to someone during the last mass invasion he was awake for, really haven't tried those out much though. Other than that can make
daggers,swords and
longswords in the forge as well as
clubs. Outside of the forge and with enough skill can simply carve staffs,clubs,daggers,swords and shields (
bucklers can also be made in the forge). You do have to supply Oak branches ( and Willow to make benches) to use as wood in the forge, other than that can buy other items needed there.