The 22nd Century Klingon Bird of Prey is tiny, one of the smallest models, but it happens to be really well crated, with strong detailing on it.
Yeah, that one does look good.
They also had the Klingon Raptor, which I'll probably get at some point. That was a nice design and I'm not sure why they never reused it after "Sleeping Dogs". They probably could've saved a bit of $ by reusing it in one or two of the episodes where they introduced a new Klingon ship. Not that I'm complaining, since we ultimately got a good four or five designs on "Enterprise" and they're the only non-Fed race with that many canon ship designs. I'm just curious.