Ceramic chopstick rest from Gifu, Japan. As these are handmade, the color and pattern may be slightly different from the pictures. 

Size (cm):

Black Ninja: 3.8 x 3.8 x 1"h

Black Shuriken: 5 x 5 x 1"h

Pink Kunoichi: 3.2 x 3.8 x 1"h