Yes, the theme 'mail art teeth' is so inspiring! I've just sent one, but I have plenty of ideas. By the way, when I went to Athe US I saw a lot of advertisements from private luxury dental clinics who offer esthetic dental treatments (so I thought to have found an answer to my wondering why so many American actresses have the same 'perfect' (almost artificial, I thought) smile :-) ). Here in the Netherlands I see advertisements like this only every now and then. But I've cut out them and will use them for mail art, if I have more time, for Christophe, too. Did you use advertisements like that in your mail art, too?
*the USA, not Athe US, sorry for mistyping.
I have some 'mail' that I get all the time, maybe not quite so much for the 'beautiful Hollywood smile' clinics, but for dental treatment. I am sure something will come of it.