Love it!I think it sounds perfect. In my opinion all of the characters who make up the childhood fun of imagination and magic are all a bit preachy anyway. (Better watch out, better not cry etc) I like the opportunity to pass on a message in the spirit of the imaginary character and I like the tongue in cheek, better clean your room more often. Gotta make it fun for yourself too.

I have come across a few names for the tooth fairy. The fairies (from ABC tv) call her Sparkle and have a song about her. Bob Graham writes a book called April Underhill - Tooth fairy. April comes from a family of tooth fairies, with a sister Esme and a mum and dad (names unknown, simply mum and dad). In our house there are lots of tooth faires, it is a big job and takes a team in my opinion! So, name him/her whatever you want.

(We also have tricksy fairies in this house, watch out for them because they cause more trouble then help )