About this 3D model

My idea was to create an accessory that allowed Sphero to do some common road style tricks, like drifting. Sort of like a rip stick for Sphero. That is why I put 2 extra support balls in the back for maximum drifting around tight corners and to upgrade Sphero's performance. My design inspiration was the Starship from the original Asteroids video game. You have probably seen it before. You might have also noticed that it looks like the Sphero ship from Exile.