The star has a flat side and a convex side. Constant claims you can use the star curved side down and it will then spin. Haven't seen any videos to prove it, though.
I figured I give it a try anyway since it was free in a giveaway.
I actually won a giveaway with Constant Gems x Chanel's Candy. They gave me the option for a pack with a ruby and white vapor pearl, gem grabber and cloth or $50 gift credit for their website. I'm new to inserts of all materials and shapes so I wanted to do some research before choosing..
Would...