Does anyone know where I can get a Trombone Stand which is NOT inserted into the bell? A friend of mine has a stand which holds the trombone by supporting the cross-piece of the slide, and it does away with the risk of scratching/denting the bell when the trombone is put onto it. I would like to get hold of one of these, the only problem being that my friend has had it so long, he's forgotten where he got it from! Any help/advice would be much appreciated. Thanks!