Update 2013: This is on my list of cosplays to remake, but I'm not sure when it will be done. My main problem is figuring out how to remake the hat and guns.
I made the hat base out of cardboard and added fabric and paint over it. Of course the hat didn't want to stay on and I forgot to add an elastic band to go under my chin while wearing it, or some way to keep the hat on my head. The shirt and arm warmers were made out of scrap white canvas fabric, black cotton, and fabric paint. The sash and boot tops were made out of black cotton and fabric paint. I purchased the pants and the boots were pre-owned. The guns were made out of craft foam (yes craft foam lol, it did the job), a little bit of duct tape in some areas, and they were painted.
LoL Summoner Showcase Issue #32