Check out Corsec Engineering.
http://corseceng.com/omni-stand/
I love the omni stand as I can adjust the height of the mini's (if you buy different size posts) and use various shapes and sizes of bases. I have hex bases to play SFB and circles to play ACTA. There are two different kinds of mounts you can use on the mini itself. I take the time to use a drill press on my mini, to hide/better attach the mount, but don't make a mistake with the drilling or you can ruin the mini. Most people simply glue them on. My friend requested scribed lines on the bases and they accommodated him.