(https://gizmag-images.imgix.net/docomo-spherical-drone-display-1.jpg?auto=format%2Ccompress&ch=Width%2CDPR&fit=max&h=700&q=60&w=616&s=9819c6761ff9cc2e498705f1e3d95d13)
NTT Docomo just released this 'drone display'. Read more about it here:
http://newatlas.com/ntt-docomo-spherical-drone-display/49214/