That or let them loose in the dinosaur exhibits. The larger dinosaurs might be a bit big but some of the smaller theropods (velociraptor and its kin) would be just as dangerous in groups.
Due to the fact we never see a daimon actually take over a living (or prior living) thing, it maybe a bit hard to pull off. Looking at a skeleton of a raptor as an inanimate object however does grant the velociraptor idea merit.
Since the instinct of the animal died off with it's extinction, the only brain controlling it would be the daimon itself. And what I recall of them, that will take out a lot of the inherent danger with the velociraptor design.
Co-operation (as the raptors are shown to do in the Jurassic Park movies, which is what partly makes them so dangerous) isn't one of the daimon's strongpoints IIRC.
Bigger dino's would be too cumbersome. We never see a daimon take over anything truck-sized IIRC, so anything over that size would probably be less then effective against the general targets around these days (those being humans, which are considerably smaller then the actual prey the big dino's hunted).