[The Vorpal Tribble]

Hrmmm, well, that definetely has potential. I'll think on writing a sort of advanced sort of Mosaican addendum that allows them this extra stuff, for super protection.

I'm also thinking how interesting these could be once you add the Soulfused Construct template (Magic of Incarnum) on top of this one. Sentient mosaicans that can cast or use psionics just like the creatures they represent.