Well, I've made things like mechanical butterflies before, and they fly pretty well on their own, as well as can be recalled at a signal. We've used them as bait before....they weren't designed to carry anything initially, but if I made them into something a little sturdier, maybe birds, they could probably carry small canisters, too.

We wouldn't really need them for messaging, given the shellphones, but for simpler tasks, I might be able to think of something...[A pause.] Well, and it'd be nice to have something pretty, wouldn't it? A bit of a comfort, instead of weaponry.