This is Doctor Strange casting a spell…
This is a demo that Jason Odom did on Hololens for a Wizard Battle challange, it shows him casting spells.
https://www.youtube.com/watch?time_continue=3&v=v1BxC-J4j1A
If Jason could cast spells with Hololens, I see no reason that we shouldn’t be able to cast spells with Zapbox.