World Beyblade Organization by Fighting Spirits Inc.

Does such a thing exist? If not I was pondering putting together a printable checklist for people to mark off their colections...

Not exactly a check off list but BeyWiki has a list of almost every part made.
http://wiki.worldbeyblade.org/index.php/...Parts_List

You didn't need to make a thread for this question though.

It's called the MFB Tier list. Printing it out, well, it's up to you then, but the list is updated so often that it would be difficult to keep track.
http://worldbeyblade.org/Thread-MFB-Tier...d-25-10-11

Please search before making a thread next time.