Long, long ago in a gaming club far, far away (but only 20 minutes from my home) I dreamt of a force of Tyranids which had different examples captured and experimented on by the Ordo Xenos of the Inquisition, who tried to turn them into controlled bioweapons to use against the orks and Chaos. Things went predictably badly and a converted warrior managed to call up a dormant genestealer manifestation, freeing all the 'zoo'...
Here are the results of that old foray, some glossy and badly painted; they will be incorporated in the new force.
The experimented-on metapatriarch and 3 lictors (note the el cheapo version hidden in soft sand, only the top of his head can be seen...
)
A hive tyrant, Carnifex (the arms were intentionally glues in that orientation, read for a charge a la Juggernaught), and the small fry.
Stealers and co. - the one front left is not badly painted, just defocused!
This grew up from something somebody planted.....