Doran's Bow
Because archer's are too strong with their projectiles being swords. Seriously though, a ranged attackspeed alternative could be an interesting concept. Having a doran's alternative to dagger when using attackspeed/armor pen would allow carries more variety in early-game builds.
The meta has shifted to defer people from playing carries/ranged champions at all. Yes they can be destructive, but against many comps they aren't even viable.
http://forums.na.leagueoflegends.com/board/showthread.php?t=2491470 This person had pretty good ideas as to itemization.