I didn't reply for a bit because I don't have any experience or recommendation on these, but there are a few to pick from. I have a ball that has a threaded insert to mount on a tripod, so you'd need to pick a mount, get a couple of ball mounts, and an arm. I'd go with a 1-1/2" size ball, the 1" aren't as solid. If you have RamMount stuff, you likely know that. Check out Amazon, or GPS City for reviews. I have a RAM Mount Netbook Tablet Mount Tough Tray II for my regular iPad. It works good, but the newer ones might be a little slicker to assemble, this one is a universal fit.