you can always buy online, however i find shopping in consignment much better.
you can try online cospay store your-cosplay.com
Buy a cosplay or ask someone to make it for you. Most cosplay websites will make custom stuff. So do some searching.
You can get cosplay stuff from eBay
I know cosplay locator makes crazy custom stuff like that. But be prepared to pay out the wazoo.
It is basically an interview that describes your cosplay. they have questions that you answer such as , What got you into cosplay? How did you decide on this cosplay? How did you put together this cosplay? Basically a self interview on cosplay.
Try the cosplay suggestorator..
The website in the links below can make custom stuff that can't be found anywhere else.
you can buy a cosplay costume online or you can make a costume yourself. There are also many places where you and other people can cosplay known as cosplay events.
You can cosplay any character! cloud-terra .com has some awesome outfits for cosplay!
Most cosplay stores sell mortal kombat cosplay.
It entairly depends of the cosplay. But in most of them, yes you do.
There should be a cosplay store in the United States, but if worst comes to worst you can just buy cosplay online.
If you need a cosplay fast and cheap the best place to always go is the thrift store that's where I have gotten all of my cosplay. (And I cosplay S. Italy)