The cygoyles are, for the most part, comic relief, although they come in handy for infiltrations. Both are roughly the size of a large housecat and look like miniature dragons ... yes, we were enthralled by the jhereg of Steven Brust and decided that we wanted 'em too.
Gimlet hangs out with Maddok, usually; has a passion for picked asparagus
and an outrageous French accent, and is generally an attitude on legs.
Much the same goes for Rickets. As mentioned, he can be found with Lord
Flasheart, and has, if anything, an even more biting wit than Gimlet.
For stats, use the basic template in the Cyberpapacy sourcebook.