hmmm, if you can could you put a ruler inside with them so we could determine eachs length?
I'm not 100% but just rapid fire answer I would say: 1)M 2)M 3)F* 4)M 5)F 6)M 7)M
![Cool 8)](./images/smilies/icon_cool.gif)
F 9)F? 10)F. now don't follow this because I'm not sure of their size and specific characteristics such as odontodes but for now, that's what I would say.
Barbie is really good at this.