Here some different versions of this piece which was originally written by Nicholas Paganini for violin but also played by some great trumpet players. For me, Rafael Mendez’s version (in C for Bb-trumpet) is the most impressive:
MotoPerpetuo-Mendez
Wynton Marsalis & Sergei Nakariakov also recorded this work but in G (for Bb-trumpet):
https://www.youtube.com/watch?v=34jnYqxNJNU
MotoPerpetuo-Wynton
Here the first part in various keys:
MotoPerpetuo_invariouskeys
You can find more exercises on my Exercises page.
Here a great performance on the violin by Jascha Heifetz: