no matter how they are printed, black, white, or halftone (greys) I still want two. If done in static I can put them anywhere, if adhesive backed I am limited to the window. The only sticker on my car now is the white Apple logo on the left rear window. (I host on 100% Mac machines) so "think different" is not only in the car I drive
Don't forget that even if printed at 5x5 which does sound kind of big, you can still trim the borders. round edges will stick better anyway.