Hmmm...
Maybe a little version of Hampa sitting on either the player's shoulder like a parrot or on the player's head?
Of course there would be different positions like maybe his legs crossed sitting down or if it's on the head maybe have his legs dangling down?
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Another thing...
Just thought of another item. The legendary spear Gungnir.
Maybe worn on the back of the tori? I don't know were else it could be put..

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Wow i'm on a roll...
Another weapon type item (Seeing as this is an event item based around fighting.)
A golden battle ax worn on the back of the tori. Could maybe even engrave the clan's logo/name on it? Maybe?...

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Please stop me... I think I have a problem.
Maybe a king chess piece on top of the player's head?