you can play PVC pipe instead.. much cheaper to learn on... just dip one end in beeswax a few times to make it more comfortable against your lips... and start blowing raspberries....if you get 2 bits of pipe, one sligthly smaller you can make a "slide" and have a tunable didge..."didgeribone"...
then all you have to do is master circular breathing... I saw a "teach yourself didgeridoo" book online the other day possibly at "hobgoblin"...
slainte
alison