Remember those rocks you showed me? Well take one of those rocks that have a cavity in it. Then make a hologram of a tiny dinosaur laying down. Put the plate over the cavity to give the effect of a rock that was broken open to reveal a cavity with a baby dinosaur in it. The glass plate will seem as an environment cover. If the geometry and measuremnts are right, the baby dinosaur will look like he is laying in the bottom of the cavity.
Cute idea, but, um, in fact Dinesh has been wanting to do something similar for a long time. The dinosaur part is novel to us - I like it! But we've considered many images inside a geode (usually things like little miners picking the crystals or some kind of grotto scene) and 2 yrs ago I made some keychains onto stone slabs (but they didn't seal well, so I put the idea aside for a while).
Just the same - if you have a perfect little dinosour baby model, let's go for it!