Design Ninja/Samurai Logos

I thought it might be good to have a pair of logos for our Ninja/Samurai. We could possibly get a vinyl ninja logo and put it on the board where people leave suggestions, and make some kind of small sign to put at the Samurai's station so people don't have to come in and ask who it is every day.

Let me know what you think of these logos. Too literal? Too detailed? I'd like the feedback.