hey i was wondering if anybody could tell me the best way to create vabrato on the trumpet, i know a little bit about it and when to use it, i just dont know how to create the effect. any help would be appreciated.

Well, i have the same problem. We have to do it often in the band.

I just started using it actually. You can either make it by wavering your jaw or tongue, eventually you can use your stomach muscles but the other methods work just as well and sound awesome especially to with held notes.