The present disclosure relates to outdoor musical instruments configured to replicate the appearance of a mushroom and to withstand prolonged exposure to the environment. The musical instrument is made up of at least a metal dish mounted to a weather-resistant support post. The metal dish is mounted to the top of the support post, and the bottom surface of the metal dish is separated from the top end of the support post by a non-metal isolator. The musical instrument is configured to produce a note that sustains when the top surface of the metal dish is struck by a mallet.