Our friends invited us to a traditional mochi pounding (mochitsuki) at their neighborhood community center in Osaka. This was an unexpected and special experience for us. For more about mochitsuki, read the traditional preparation section on Wikipedia.

Photo of three Japanese men grinding rice and shrimp into a paste in a stone mortar with wooden kines (pestles). The shrimp color the paste a bright red.
Rice is ground into a paste to make mochi.
Rice is pounded into mochi in a stone mortar.
Photo of three Japanese women shaping mochi.
Shaping mochi.
Photo of people gathered outside of a community center on a corner in a residential neighborhood in Osaka.
People gathered outside a community center in Osaka.