A gravawand such as this one (built specifically for Jakk to resemble a fountain pen) is a commonplace tool on Hugubu which is used for lifting heavy objects, games, even for jumping off of buildings (since it can impede one's fall). This gravawand resembles an Earthling fountain pen so that Jakk could carry it about without attracting attention from authorities. (from science fiction & fantasy novel Jakk's Journey by tom sulcer). From public domain image of fountain pen; words added using SUMO Paint software.