I'm going to guess those are Lego horns too.
I have a little lego samurai at home (I'm at parents house right now). I'll look at him and see for sure.
Also, There is an anime (japanese cartoon) out that is called "Samurai 7". It is loosely based on The Seven Samurai. The series is set in a sort of futuristic world. I bought it on principle, but the original movie and western adaptation are probably better.