Hovering droids like...

[schubertrr]

Hmm, interesting idea, though it the size/shape does seem a bit awkward.

Yeah, I imagine the fins coming off the back would need to be balanced with something in the front.  Maybe by shifting the central fan a little to the back in the body, instead of dead center.  

Anyone played with those drone Falcons that came out last fall?  There were 2 versions, one with a large central fan, then a bigger drone with 4 little fans in the core.  I wonder if Toys R Us has them on clearance...hehee.