This might be helpful for some?
I had some scrap bits of ally hanging around and a bit of tin so I turned them into this rather than waste them, it prob. took about 1.5 hours to put it together but no expense and it has proved most useful, it will hold about 4 pints or a small mixer or maybe what you use to play your backing tracks, the more weight you put on it the more it grips using the splay of the steel legs. Yes it fits either end and no! I am not taking orders......