Do you know the store Kiddyland?
It is a famous toy store in Tokyo. Many tourists visit it yearly as they have a wide variety of toys available.
For a while they were shut but they have reopened on the 7th of January 2013 back in Omotesando Street!
[Its closer to the train stops Meiji Jingumae and omotesando than Harajuku station]
Its 5 stories of fun!
On the top floor, is the Rilakkuma Store AND the Hello Kitty Store!
For Rilakkuma fans, note that the store in Tokyo Solamachi is much larger [just FYI] but if you dont have time to go, this is a good alternative.
If you get the chance, do pay the new and improved Kiddyland a visit!
Have an excellent trip!