When I was growing up, my teacher assigned me “Hora Staccato”. I suppose it was meant to “loosen me up” a bit – I was an introverted undemonstrative player, at best, in those days. Also, some of the bowing tricks in this piece were new to me at the time. I have used this piece in my present teaching career, and now enjoy it even better when I can accompany my students in this version of a duet for two violins. I still am amazed watching video of Heifetz performing this – he made it all look so easy! Here is a link to his performance: https://www.youtube.com/watch?v=Mag2mc5Vva0
Here is a link to Hora Staccato.