the band in which he became famous was called gondwanaland. he has toured across australia, often visiting remote communities in the outback, and also in europe and the united states. he often played gigs with midnight oil. mcmahon's style became an influence for many well-known didgeridoo players. he is also the inventor of the "didjeribone", a sliding didgeridoo made of plastic, played in a similar way to the trombone.