Nisshodo Mochi - 11/18/09
Nisshodo has a candy storefront on Dillingham Blvd, where you can also get these along with chi chi dango (straight mochi dusted with cornstarch or kinako -soybean flour). They also make some funky flavors like coconut, chocolate and peanut butter, but I've not tried those.
These are made without preservatives so you have to eat them quickly! :)