This is a vehicle which has no wheels but instead rolls around itself. The ball is composed of 2 layers where the outer layer rolls to move the vehicle while the inner ball has weights in the bottom to keep it level.
This idea was developed in INNOENT Education Inventors school in Breidholt Iceland. It was designed with scetches and computer aided 3D drawing before a handmade model and 3D printed model were made.
This particular course had ten young students working together on their ideas and projects.
Below is an interview with the young inventor. (in icelandic)