Imagining the top circle of the drum as a clock, staple an edge of your circle of static cloth at 3 o'clock, then opposite at 9 o'clock about 1 cm from the inner edge of the drum. Then staple the fabric's 12 o'clock and 6 o'clock to the drum's respective 12 o'clock and 6 o'clock. Continue in this way, attaching the midpoint of a section of cloth to the midpoint of a section of the drum, until there is little to no room between staples. You're doing this rather than just stapling around in a circle to spread out where the cloth bunches up, as well as help the cloth hang better. And you need this many staples because it will be holding your full weight. For a long time.