I’ve seen a bunch of pseudo-sparkleballs in my time, and some are pretty wonderful.  Manufactured sparkleballs are really just round light fixtures, and none of them have that  je ne sais quoi  of  a real one. They don’t have the Original Sparkleball‘s  50 little reflective chambers, nor its inimitable sparkle and glow.   The deal is, sparkleballs are handmade.  If you want one you’ll have to make it.  Or find someone to make it for you.