Fancy Dress Idea's

[Soxafloppin]

Get silver Speedos and paint yourself silver, you are the silver surfer! Easy!

 

[The Salty Vulcan]

Get a buttload of bandages, sunglasses, a hat and a coat and voila

Spoiler: You'll be the belle of the ball...

 

[Fetzenfisch]

How about Gambit from the X-Men? He has a pretty simple costume.

Gambit just flew to the top of the list.

Yeah gambit is awesome. You just have to manipulate situations so that people have to ask you "how did you do that?" so you can answer "with style baby - with style"

 

[Merkavar]

go as he-man. its like undies and a belt for the costum, maybe a sword

 

[JdA]

Take a trip to the closest water treatment plant, then go as Shit-Head from Wanted?

 

[Not-here-anymore]

Rorschach. Always Rorschach. Though you need a white balaclava and black and white facepaint for the mask. Or some kind of white silk-type stuff and a sharpie

 

[WolfThomas]

80s tees, has a fantastic Magneto costume (http://www.80stees.com/products/Magneto-Costume.asp) that might fit your budget. I bought one for a party this weekend too and I don't regret it.

God that sounds like an ad. Its for sale on other websites too, you might be able to find an in country seller on ebay (or real life) as the delivery timing may be an issue.