I had a go at making something similar, but couldn't get the thing to go exactly right. I didn't want to let my friend's niece down, so made something else completely, which I hope she will like equally if not more than the original. Then it struck me that my friend's daughter might feel a little sad, so I made a copy for her!
These bracelets took half an hour to make and could be sold for about £4, so would be perfect for fairs and school bazaars - so littlies could buy themselves something sparkley!