Sasaki Kogei, the creative woodworkers that brought us the delightful toy breakfast set, have debuted their latest green design — interlocking wooden picture frames. We’re impressed with the playful aesthetic of these puzzle frames, and with their endless possibilities for displaying your favorite photos. The horizontal and vertical frames, crafted from all-natural oak and walnut, interlock to create photomontage wall art. A single frame costs about $14, or you can pick up a set of 5 for $58. But if you want to combine the horizontals and the verticals you will also need to pick up some spacers ($4.50) as seen in the illustrated diagram.