[Groop]Groo's Swords

[jeff allen]

Do you guys feel that Groo's Swords/Katanas straight or curved? And are 
they two different lengths too?   The comics show them different from 
issue to issue.   Sergio draws them different every time.  
Garrrrrrrr.    :-)

I'd like to dress as Groo for Halloween (those evil spirits will never 
see through my clever disquise because who would be stupid enough to 
dress as Groo), but I'd like to be as accurate as possible if I am going 
to spend $75+ on a set of replica swords.

Any help you guys can provide would be welcome,

Jeff