Stands
Rohan's Stand Heaven's Door likely evolved from his zeal in drawing manga. The Stand enables him to transmute people into "human books", with written pages unfurling from their bodies. These pages contain information about the person, such as height, weight, personality, and even their Stand. Heaven's Door also enables Rohan to draw manga pages at unbelievable speeds, whereby he controls the ink droplets from his pen and forms it into the outlines of his intended manga page.
In Rohan Kishibe Goes to Gucci, Rohan becomes the owner of his deceased grandmother's Gucci bag. This said bag possesses a Stand that allows the user to store items and re-obtain them at a later time when the user is in need.