Super Mario Galaxy 2 Danglers Part III...The One With Boo!
Yes, I have at long last got the boo keychain/phone fob/whatever. Actually, I was not even looking. I got the original two for my wife, then she decided she didn't want either of those, then found the Boo for me.
I'm not sure why exactly, since this was her thing originally, but whatever, I'll take it.