Love these plump fonts. I have seen some that were very close but I can't recall the names.
Anyway a previous fat fonts thread:
http://www.typophile.com/node/42643
Don

Try Sniglet. Not identical, but close.
Don

Bambina

Congratulations defiantone for finding the match in Tomoyuki Watanabe's Bambina. It's real kawaii!
Don

Thanks so much, saved me loads of time.

Paula