鑄件

铸 = 寿 + 钅 : Julian Giant Squid (zhu) is melting longevity peach buns (寿) to use them to cast (铸) a golden harpoon (钅) in the space station's bathroom (Ø4).

件 = 亻 + 牛 : Joan of Arc and Rosa Luxemburg want to use the anthill's bathroom, but there is a bull blocking the way. He posed them a riddle, and as long as they can't deliver the item or component he asked for to fulfill this quest, he won't let them pass.