In my career I've seen more names than you can imagine. There's a cult out there where members legally change their names to a series of characters more than twenty long so their names won't fit on government forms (can't be tracked). There's been cases here in Alberta where a Judge has refused such name changes for dependent children. If the parents want to be that stupid, fine.
There was also a case where children were named after swear words and that was changed.
The last name I'll never forget is Born-With-a-Tooth.