Knot A. Dentist: There is a muscle behind the incisors that develops with sucking, be it on bottles or thumbs. The muscle will make the upper incisors jutt outward. I've never seen an arch formation such as this though.
Anonymous: it uses polarised silicon which makes is a rather tough little son of a bitch (Alien)
Anonymous: that fucker could only crimp a carrot!
Anonymous: Wow, that thumb had to be the size of an adult Pe.... um, never mind!