Creepy Robotic Finger Attaches to Your Phone and Strokes Your Hand Posted by October 8, 2018 Leave a comment on Creepy Robotic Finger Attaches to Your Phone and Strokes Your Hand MobiLimb has joints that allow it to function like a real finger. When attached to the bottom of your phone, it can tickle your wrist, or reach around to caress the back of your hand.