I was going to play devil's advocate and find a site that argues that the vikings did wear horns.. BUT, it's five AM, and I can't be bothered to scroll past the first page of google.

Anyway, here's a site that says the same thing with an odd man in it.

http://tallskinnykiwi.typepad.com/ta..._horns_an.html

doesn't actually say much about horns though...