A while back there was a thread where someone had suggested cutting a piece of one of those pool life-saver noodles the kids use. I went ahead and got one for about $2, cut it down to about 3 inches for my provari, Lambo, and cut a slit on the side of the middle hole to make them fit in and use that around the house. It's a great and cheap stand for them. I cut another one to go inside the cup holder in the car and that's where my spinner sits while I'm driving. Needless to say I have a lifetime supply of pv stands left LOL.
I suppose you can cut the middle hole to hold a square one too.
I suppose you can cut the middle hole to hold a square one too.