Naoki Ono and Yuuki Yamamoto's silicone coasters and placemats mimic the scribbles that are often the starting point of great ideas. Ono and Yamamoto make up YOY, a Tokyo-based design unit that creates products that spark conversations and encourage storytelling. Set your table with these coasters featuring designs that mimic charcoal and pencil scribbles. Hand-wash. Set of 4.