kirimochi

What to do with kirimochi?

I'm visiting Tokyo right now (until Monday only! :( ) and was given some kirimochi (hard mochi cakes). I was wondering if Maki had any recommendations on how to cook/prepare it? I've been looking on the internet and so far all I've seen is frying it, or cooking it in the microwave oven, with soy sauce, etc. Any other ideas?

Thank you :)