Favorite childhood Japanese traditions

What are your fondest memories?

I would like to celebrate the most enjoyable ones for my children who are still very young.

What specific activites, things received/watched, decorations, or any other things that made it special and memorable do you recall as being your favorites?

Thanks for any input!

Girl's Day/Festival:
http://en.wikipedia.org/wiki/Hinamatsuri

Children's Day/Boy's Festival (National Holiday):
http://en.wikipedia.org/wiki/Children's_Day_(Japan)

Shichi-Go-San:
http://en.wikipedia.org/wiki/Shichi-Go-San

Thanks for the sites! I'm also looking for personal favorites. What made it an especially favorite memory for you if you celebrated it as a child. I'm trying to see through the eyes of a child and see what made it so memorable.

Like for me, there are lots of childhood holidays/traditions that we celebrated, but I have the ones that are my own favorites.

Also, for certain holidays like Christmas, within this holiday, there are tons of activities/things to do, but I enjoy certain ones more than others.

So I was just wondering, personally, for those of you who celebrated Japanese holidays/traditions, which ones you liked the most and why.