Raban

Raban or Rabana (Sinhalese: රබාන) is one-sided traditional drum type played with the hands, used in Sri Lanka.Its mainly played in Aurudu Kreeda (The Srilankan New Year). The body of these drums are made by carving the Jack or Vitex trees. The skin used is that of a goat. There are two types of Rabans as Hand Raban and Bench Raban.

...
Wikipedia