Cup
It's nondescript, inconspicuous. White china with a deep blue trim. It look's like it belongs there but to her it doesn't. Sitting in the middle of her kitchen table, still half full of tea (Thank Kami he doesn't take milk). She hates it. She can't bear to move it.
It's a reminder, a painful one that their Shinobi world can take a person at a moment's notice. She thanks Kami that it was just for a mission this time. That he should be coming back in less than a day's time and she will be able to throw away the stale tea, forgotten in the rush to find kunai, paper bombs and spare underwear, and make him a fresh cup.
And he will laugh at her when he see's the half-drunk cup of tea. Kiss her on the forehead and tell her the pregnancy hormones are making her crazy, and she will point out how that is his fault. But he will just laugh and pull two fresh mugs out the cupboard to make tea. Only to be interrupted when their old team-mate crashes through the window demanding to know that his best friend came back in one piece, before leaving as quickly as he came (He is on the run from furious advisors waving stacks of unfinished paperwork after all.)