A couple of items of interest here: the first is a blog from Normans on how to take of your trumpet. This is obviously something that is very important and needs to be done regularly. If you get stuck with any part, please get in touch and I will be able to help!
Secondly I happened across this youtube clip of a trombone quartet with a difference! This is pretty awesome stuff, making use of the Yamamha Silent Mute system (which some of my students have seen me use in my euphonium) but put through a voice changer... you'll see (hear) what I mean. Anybody up for this?