SocialPoint's Dragon City has some really fantastic designs.

Zombie Dragon is one of my all-time favorites, least of which that its typing, design, and description correlate to one of my OCs.

Here I drew a Baby Dragon on a Metal Habitat, teething on a Unicorn Horn fruit. I imagine it tastes something close to a pineapple, based on what the plant looks like.

I... don't think the poor thing knows a Unicorn Horn from a rock though.