#23: Alien-Like Hand
Another alien hand for the win. With a slight stretch of the imagination, it can look normal. And by a slight stretch, I mean make your eyes go out of focus and simultaneously try to convince yourself that humans have and always have hand four fingers and not five fingers.

If you can complete those simple steps, this hand and these fingers will look completely normal. However, if you cannot, you’ll be stuck staring at the hand in utter disbelief. My mind keeps trying to insert an extra finger in between, but it isn’t working.