Bored with digital and spring reverb on your vocal tracks then try this handy hint from a TV show I did in the 80's. We had a guy come in and he claimed to be the only club circuit singer in the world to be using a washing machine as his auditorium. Now we as well trained sound engineers laughed our socks off when he wheeled in a tumble drier and proceded to sing a karaoke type elvis song through an SM58 with his head inside the washing machine metal drum. The resulting sound was very good and when we all tried it for ourselves the sound inside the steel drum was amazing and almost surround sound. Try it for yourself but make sure that the machine is switches off at the mains power first. You can then add a bit of digital reverb to enhance the tonal qualitities.