5 Black star shaped objects

Approx 2:00pm my roommate got me to come outside. Looking up there were 5 black star shaped craft with 3 "arms". They were right at the cloud ceiling layer. They were very difficult to make out unless you stared with concentration. They were floating/lumbering along the cloud layer slowly. At times they appeared to disappear. We took a video and photos, but the resolution was too low to discern them in the photo/video. They were hard enough to see with the naked eye, let alone a phone camera.