Spacewriter iball
Spacewriter iball 270mm diameter. These are designed for business advertising but they are well suited for mancave displays. You will need to be familiar with programming. It comes with software but is not plug and play so you will need to play with it to add your own displays. The software comes with some displays that will upload to the device to get you started. You will also need a usb to serial converter. $100 for the ones with desk top stand. $150 for wall mount. Google " spacewriter