Thinking of ways I could strengthen my lungs and thereby project my voice and speak more clearly I hit upon the idea that playing some kind of wind instrument might do the trick.. As I have always wanted to play the didgeridoo I went out and bought one. It's a beauty! About 4 foot long, painted dark red and covered with aborigine symbols. You have to blow a "raspberry" through it, rather like playing the trumpet. It gives a lovely, deep note but I have yet to master the circular breathing technique required to produce the continuous drone. Witchetty grubs are definitely off the menu however. 

brillliant, i hav a recording of the dr who thme on digeridoo.

nver understoood circular breathing but it can caus lung infections!!!!