How do you like your o-mochi? Round or Rectangular? Grilled or Boiled?
The shape and preparation of o-mochi varies from region to region in Japan. In the East, it is rectangular and usually grilled. In the West it tends to be round. Half of Kyushu grills their round mochi, while those in the Kansai and Chugoku regions boil theirs.
My wife's family from Kagoshima grills their rectangular mochi in a toaster.