How is a mridangam made?

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Instrument: 

A short educational film, taken from the archives of the Asian Music Circuit's Museum of Asian Music.

The mridangam (Sanskrit: म्र्दांगम , Tamil: மிருதங்கம் ) is a percussion instrument from India of ancient origin. It is the primary rhythmic accompaniment in a Carnatic music ensemble. Alternate spellings include "mrudangam", "mrdangam", "mrithangam", "miruthangam", and "mirudhangam".

The mridangam is also played in Carnatic concerts in countries outside of India, including Sri Lanka, Singapore, Malaysia, Australia, United Kingdom, Canada, and the United States. During a percussion ensemble, the mridangam is often accompanied by the ghatam, kanjira, and the morsing.