I think we can all agree on this one.
http://img10.deviantart.net/ba28/i/2015/047/0/e/arcade_miss_fortune_by_keikei11-d863a22.jpg
Trust me, you don't get more retro swaggy than with Lightguns.
Whisper. Badass? Arguably. Swaggy? Four sure.
http://www.iconarchive.com/download/i78576/chrisl21/minecraft/Stone-Shovel.ico
(This is not a buddhist monk watchamacallit)
's
She literally smacks you in the face with her idol, deal with it.
Fiora's poolnoodle
WHY ISN'T WHISPER THE FOURTH OPTION?
... I can't believe you forgot about the best weapon in league...
Also you posted a picture of a clock hand. The zero drive is the thing on his back
http://lolwp.com/wp-content/uploads/2013/05/Aatrox-Classic.jpg
This thing. This thing is a beast. (lore-wise anyways.)
Archduke
's cane.
But if we wanna get real swaggy: https://s-media-cache-ak0.pinimg.com/564x/67/14/58/671458463c071a42b0eaf561cc6261de.jpg
Riot, we still need a champion that uses this weapon. I'm not sure if Blood Moon Shen counts.
I'LL BEAT YOU TO DEATH WITH YOUR OWN BLOOD!
, but don't tell anyone.
It's a secret.
hat
http://cdn.leagueoflegends.com/apollo/content/braum-fanart/yy6242.png
Nothing else to say
Lamb's bow is still the best IMO.
I like Nasus' Soul Staff, especially in the Archduke skin.
Kha'zix's claws
Whisper FTW
You dont' have to like him, but I'm 100% always going to be biased toward arm blades :/ 
Too much Assassin's Creed I guess
Aatrox's sword turns him into a veritable god of carnage lorewise
Olafs beard