She asked me for one a couple weeks ago. I thought it was sorta weird, but she is an unusual kid. Anyhow, I was showing her how to do it. I got 2 sides done and gave up. Sometime last week, while her mom was driving her home from school, she was making a video of her self finishing the cube on her Ipad. My daughter found the video and showed it to me, and I thought she faked it somehow. But no, she can actually do it.