I had a request for a cake stand where the top can be rotated. I was thinking I could use a bearing from a lazy susan but so far all I have found is either square ones or larger round ones. Since it doesn't need to hold much weight it doesn't need to be that large. I'm hoping to hide most of the bearing inside the spindle part of the stand. I have seen some really cheap Chinese ones that are square that are 3" and I did find a round aluminum one that's 4" but it looks like it's designed to just be placed on a table then have a piece of glass set on top of it. I might be able to modify it to work but I thought I would ask first. I wanted it to be screwed together so if someone lifts up on the platter it's not going to come apart.